US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

Natural Gas

35.27

+0.07000.20%

Post-market: 35.270.00000.00%16:10 EDT

Volume:88.58K

Turnover:3.11M

Market Cap:454.15M

PE:22.04

High:35.44

Open:35.27

Low:34.85

Close:35.20

52wk High:44.61

52wk Low:25.53

Shares:12.88M

Float Shares:12.48M

Volume Ratio:1.15

T/O Rate:0.71%

Dividend:0.47

Dividend Rate:1.33%

EPS(TTM):1.60

EPS(LYR):1.57

ROE:7.30%

ROA:4.39%

PB:1.54

PE(LYR):22.46

Loading ...

Overview Company News Filings

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

[Rev.]Annual Report

10-K/A [Amend] - Annual report [Section 13 and 15(d), not S-K Item 405]

Annual Report

10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Major Issues Report

8-K - Current report

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Correspondence

CORRESP [Cover] - Correspondence

Statement Of Changes In Beneficial Ownership

4 - Statement of changes in beneficial ownership of securities

Statement Of Changes In Beneficial Ownership

4 - Statement of changes in beneficial ownership of securities

Statement Of Changes In Beneficial Ownership

4 - Statement of changes in beneficial ownership of securities

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Beneficial Ownership Change

SC 13D - General statement of acquisition of beneficial ownership

Major Issues Report

8-K - Current report

Annual Report

10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.0a0bd8dc.png","ogUrl":"https://sg.tigeractivity.com/stock/NGS/filings?page=8"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"NGS","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"NGS\",,,,,undefined,":{"symbol":"NGS","market":"US","secType":"STK","nameCN":"Natural Gas","latestPrice":35.27,"timestamp":1788292800000,"preClose":35.2,"halted":0,"volume":88577,"hourTrading":{"tag":"盘后","latestPrice":35.27,"preClose":35.27,"latestTime":"16:10 EDT","volume":1064,"amount":37527.280000000006,"timestamp":1788293404919,"change":0,"changeRate":0,"amplitude":0},"delay":0,"changeRate":0.0019886363636363717,"floatShares":12481581,"shares":12876400,"eps":1.600244,"marketStatus":"Post-Mkt","change":0.07,"latestTime":"09-01 16:12:48 EDT","open":35.27,"high":35.44,"low":34.8468,"amount":3112261.578979,"amplitude":0.016852,"askPrice":35.27,"askSize":1,"bidPrice":34.77,"bidSize":1,"shortable":3,"etf":0,"ttmEps":1.600244,"tradingStatus":3,"nextMarketStatus":{"tag":"Closed","tradingStatus":0,"beginTime":1788307200000},"marketStatusCode":4,"adr":0,"adrRate":0,"listingDate":1035172800000,"exchange":"NYSE","adjPreClose":35.2,"dividendRate":0.013326,"preHourTrading":{"tag":"盘前","latestPrice":36.0897,"preClose":35.2,"latestTime":"09:26 EDT","volume":7,"amount":250.84850000000003,"timestamp":1788269208623,"change":0.8897,"changeRate":0.025276,"amplitude":0.025276},"postHourTrading":{"tag":"盘后","latestPrice":35.27,"preClose":35.27,"latestTime":"16:10 EDT","volume":1064,"amount":37527.280000000006,"timestamp":1788293404919,"change":0,"changeRate":0,"amplitude":0},"volumeRatio":1.145308,"impliedVol":0.3716,"impliedVolPercentile":0.623},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"NGS\",,,,,undefined,":{"symbol":"NGS","floatShares":12481581,"roa":"4.39%","roe":"7.30%","lyrEps":1.57,"volumeRatio":1.145308,"shares":12876400,"dividePrice":0.47,"high":35.44,"amplitude":0.016852,"preClose":35.2,"low":34.8468,"week52Low":25.53,"pbRate":"1.54","psRate":"2.40","week52High":44.605,"institutionHeld":0.8142,"latestPrice":35.27,"eps":1.600244,"divideRate":0.013326,"volume":88577,"delay":0,"ttmEps":1.600244,"open":35.27,"prevYearClose":33.65,"prevWeekClose":34.69,"prevMonthClose":35.2,"prevQuarterClose":43.14,"fiveDayClose":34.37,"twentyDayClose":37.23,"sixtyDayClose":39.87,"dividendPayoutRate":0.1321246652841813,"dividendFrequency":"Q","dividendGrowthYears":0,"fiveYearAvgDividendRate":0.00617828773168579},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/NGS\",params:#limit:5,,,undefined,":[{"date":"2026-08-19","symbol":"NGS","amount":0.15,"announcedDate":"2026-08-10","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-08-19","defaultRemindTime":1787146200000,"name":"Natural Gas Services Group Inc","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-09-02","payableDate":"2026-08-19","currency":"USD","dateTimestamp":1787112000000,"payDate":"2026-09-02"},{"market":"US","date":"2026-08-10","symbol":"NGS","fiscalQuarterEnding":"2026/06","expectedEps":0.37,"name":null,"time":"Post-Mkt","type":"earning","dateTimestamp":1786334400000,"reportTimeType":"post","actualEps":0.47},{"date":"2026-05-20","symbol":"NGS","amount":0.15,"announcedDate":"2026-05-11","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-05-20","defaultRemindTime":1779283800000,"name":"Natural Gas Services Group Inc","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-06-03","payableDate":"2026-05-20","currency":"USD","dateTimestamp":1779249600000,"payDate":"2026-06-03"},{"market":"US","date":"2026-05-11","symbol":"NGS","fiscalQuarterEnding":"2026/03","expectedEps":0.45,"name":null,"time":"Post-Mkt","type":"earning","dateTimestamp":1778472000000,"reportTimeType":"post","actualEps":0.53},{"market":"US","date":"2026-03-16","symbol":"NGS","fiscalQuarterEnding":"2025/12","expectedEps":0.37,"name":null,"time":"Post-Mkt","type":"earning","dateTimestamp":1773633600000,"reportTimeType":"post","actualEps":0.32}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"NGS\",market:\"US\",,,undefined,":[{"executeDate":"2025-08-08","recordDate":"2025-08-08","paymentDate":"2025-08-22","value":0.1,"currency":"USD"},{"executeDate":"2025-11-20","recordDate":"2025-11-20","paymentDate":"2025-12-03","value":0.11,"currency":"USD"},{"executeDate":"2026-02-18","recordDate":"2026-02-18","paymentDate":"2026-03-04","value":0.11,"currency":"USD"},{"executeDate":"2026-05-20","recordDate":"2026-05-20","paymentDate":"2026-06-03","value":0.15,"currency":"USD"},{"executeDate":"2026-08-19","recordDate":"2026-08-19","paymentDate":"2026-09-02","value":0.15,"currency":"USD"}],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"NGS\",market:\"US\",delay:false,,,undefined,":{},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/NGS\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"NGS","date":"2026-08-31","current":22.040389,"percent":0.663166,"low":-256.562625,"twenty":-25.241199,"median":18.576313,"eighty":25.418922,"high":4916.003289,"avg":203.756584,"sd":923.319699,"marketCap":447441506},"quantilePoints":[{"date":"2021-09-03","current":-26.678543,"twenty":-13.103078,"median":14.285128,"eighty":37.730006,"marketCap":126776436},{"date":"2021-09-10","current":-27.998429,"twenty":-13.853437,"median":14.185464,"eighty":37.730006,"marketCap":133048533},{"date":"2021-09-17","current":-26.875122,"twenty":-26.442648,"median":14.119022,"eighty":37.730006,"marketCap":127710578},{"date":"2021-09-24","current":-26.201137,"twenty":-26.802107,"median":13.961896,"eighty":37.730006,"marketCap":124507805},{"date":"2021-10-01","current":-29.739555,"twenty":-26.847039,"median":13.901075,"eighty":37.730006,"marketCap":141322363},{"date":"2021-10-08","current":-34.067857,"twenty":-27.015535,"median":13.799706,"eighty":37.730006,"marketCap":161890457},{"date":"2021-10-15","current":-34.816906,"twenty":-27.610888,"median":13.627348,"eighty":37.730006,"marketCap":165449938},{"date":"2021-10-22","current":-31.376829,"twenty":-28.048977,"median":13.463168,"eighty":37.730006,"marketCap":149102693},{"date":"2021-10-29","current":-31.543285,"twenty":-28.178135,"median":13.252313,"eighty":37.730006,"marketCap":149893688},{"date":"2021-11-05","current":-34.511738,"twenty":-31.443411,"median":12.936346,"eighty":37.730006,"marketCap":163999779},{"date":"2021-11-12","current":-28.323181,"twenty":-31.809613,"median":12.81675,"eighty":37.730006,"marketCap":154248045},{"date":"2021-11-19","current":-26.048708,"twenty":-31.809613,"median":12.67113,"eighty":37.730006,"marketCap":141861262},{"date":"2021-11-26","current":-27.197915,"twenty":-31.809613,"median":12.617422,"eighty":37.730006,"marketCap":148119847},{"date":"2021-12-03","current":-24.684024,"twenty":-31.809613,"median":12.50894,"eighty":37.730006,"marketCap":134429192},{"date":"2021-12-10","current":-24.779791,"twenty":-31.809613,"median":12.421087,"eighty":37.687226,"marketCap":134950741},{"date":"2021-12-17","current":-23.965769,"twenty":-31.809613,"median":12.360265,"eighty":37.648411,"marketCap":130517577},{"date":"2021-12-23","current":-25.378337,"twenty":-31.809613,"median":12.333233,"eighty":37.609634,"marketCap":138210421},{"date":"2021-12-31","current":-25.067093,"twenty":-31.809613,"median":12.272412,"eighty":37.543382,"marketCap":136515387},{"date":"2022-01-07","current":-25.881115,"twenty":-31.787419,"median":12.138372,"eighty":37.480006,"marketCap":140948552},{"date":"2022-01-14","current":-27.269741,"twenty":-31.787419,"median":12.096706,"eighty":37.480006,"marketCap":148511009},{"date":"2022-01-21","current":-24.564314,"twenty":-31.787419,"median":12.0494,"eighty":37.480006,"marketCap":133777256},{"date":"2022-01-28","current":-25.569871,"twenty":-31.787419,"median":11.991958,"eighty":37.480006,"marketCap":139253518},{"date":"2022-02-04","current":-27.078206,"twenty":-31.787419,"median":11.826389,"eighty":37.480006,"marketCap":147467911},{"date":"2022-02-11","current":-27.580985,"twenty":-31.787419,"median":11.485112,"eighty":37.480006,"marketCap":150206042},{"date":"2022-02-18","current":-28.011938,"twenty":-31.787419,"median":11.29589,"eighty":37.480006,"marketCap":152553012},{"date":"2022-02-25","current":-29.544214,"twenty":-31.787419,"median":11.133699,"eighty":37.480006,"marketCap":160897792},{"date":"2022-03-04","current":-30.14276,"twenty":-31.881744,"median":10.532243,"eighty":37.480006,"marketCap":164157472},{"date":"2022-03-11","current":-30.046993,"twenty":-31.881744,"median":-4.119645,"eighty":37.480006,"marketCap":163635923},{"date":"2022-03-18","current":-15.427724,"twenty":-31.881744,"median":-4.318331,"eighty":37.480006,"marketCap":141672794},{"date":"2022-03-25","current":-17.560462,"twenty":-31.881744,"median":-4.629788,"eighty":37.480006,"marketCap":161257722},{"date":"2022-04-01","current":-16.341755,"twenty":-31.881744,"median":-4.822481,"eighty":37.480006,"marketCap":150066334},{"date":"2022-04-08","current":-16.411,"twenty":-31.881744,"median":-5.183933,"eighty":37.480006,"marketCap":150702209},{"date":"2022-04-14","current":-18.751471,"twenty":-31.881744,"median":-5.307647,"eighty":37.480006,"marketCap":172194760},{"date":"2022-04-22","current":-18.059024,"twenty":-31.881744,"median":-5.395181,"eighty":37.480006,"marketCap":165836017},{"date":"2022-04-29","current":-17.006504,"twenty":-31.881744,"median":-6.229586,"eighty":37.480006,"marketCap":156170728},{"date":"2022-05-06","current":-17.034202,"twenty":-31.881744,"median":-7.732276,"eighty":37.344582,"marketCap":156425077},{"date":"2022-05-13","current":-16.521791,"twenty":-31.881744,"median":-7.991191,"eighty":37.158672,"marketCap":151719607},{"date":"2022-05-20","current":-18.452669,"twenty":-31.881744,"median":-8.222801,"eighty":36.80071,"marketCap":155961962},{"date":"2022-05-27","current":-20.593179,"twenty":-31.881744,"median":-8.345427,"eighty":36.320704,"marketCap":174053550},{"date":"2022-06-03","current":-21.803674,"twenty":-31.881744,"median":-8.440783,"eighty":36.0474,"marketCap":184284654},{"date":"2022-06-10","current":-20.799849,"twenty":-31.881744,"median":-8.556638,"eighty":35.889171,"marketCap":175800324},{"date":"2022-06-17","current":-18.93982,"twenty":-31.881744,"median":-8.686057,"eighty":35.745327,"marketCap":160079358},{"date":"2022-06-24","current":-17.566941,"twenty":-31.887292,"median":-8.733766,"eighty":35.745327,"marketCap":148475788},{"date":"2022-07-01","current":-15.647864,"twenty":-31.887292,"median":-8.856393,"eighty":35.486407,"marketCap":132255744},{"date":"2022-07-08","current":-14.688325,"twenty":-31.887292,"median":-8.951769,"eighty":35.371332,"marketCap":124145722},{"date":"2022-07-15","current":-14.688325,"twenty":-31.887292,"median":-9.128897,"eighty":33.715796,"marketCap":124145722},{"date":"2022-07-22","current":-14.79166,"twenty":-31.887292,"median":-9.181358,"eighty":33.205764,"marketCap":125019109},{"date":"2022-07-29","current":-14.835946,"twenty":-31.887292,"median":-9.251524,"eighty":32.776264,"marketCap":125393417},{"date":"2022-08-05","current":-14.58499,"twenty":-31.887292,"median":-9.510403,"eighty":32.212544,"marketCap":123272335},{"date":"2022-08-12","current":-14.821184,"twenty":-31.887292,"median":-9.695353,"eighty":31.729356,"marketCap":125268648},{"date":"2022-08-19","current":-19.552796,"twenty":-31.887292,"median":-9.957389,"eighty":31.460918,"marketCap":129107109},{"date":"2022-08-26","current":-21.924529,"twenty":-31.887292,"median":-10.380679,"eighty":31.232746,"marketCap":144767665},{"date":"2022-09-02","current":-19.851597,"twenty":-31.887292,"median":-10.532245,"eighty":17.341066,"marketCap":131080092},{"date":"2022-09-09","current":-19.048569,"twenty":-31.887292,"median":-10.652794,"eighty":17.216549,"marketCap":125777699},{"date":"2022-09-16","current":-19.197969,"twenty":-31.887292,"median":-10.818271,"eighty":16.954202,"marketCap":126764191},{"date":"2022-09-23","current":-18.899168,"twenty":-31.887292,"median":-10.898506,"eighty":16.659061,"marketCap":124791207},{"date":"2022-09-30","current":-18.749768,"twenty":-31.887292,"median":-10.955144,"eighty":16.54085,"marketCap":123804715},{"date":"2022-10-07","current":-20.000997,"twenty":-31.887292,"median":-11.03223,"eighty":16.403272,"marketCap":132066584},{"date":"2022-10-14","current":-18.675067,"twenty":-31.887292,"median":-11.099092,"eighty":16.101573,"marketCap":123311470},{"date":"2022-10-21","current":-19.31002,"twenty":-31.887292,"median":-11.192699,"eighty":16.003192,"marketCap":127504059},{"date":"2022-10-28","current":-20.635949,"twenty":-31.887292,"median":-11.247415,"eighty":15.842139,"marketCap":136259174},{"date":"2022-11-04","current":-20.635949,"twenty":-31.887292,"median":-11.267572,"eighty":15.807513,"marketCap":136259174},{"date":"2022-11-11","current":-22.055255,"twenty":-31.887292,"median":-11.286306,"eighty":15.736525,"marketCap":145630846},{"date":"2022-11-18","current":-23.465315,"twenty":-31.887292,"median":-11.328042,"eighty":15.65657,"marketCap":127346266},{"date":"2022-11-25","current":-25.365434,"twenty":-31.887292,"median":-11.428825,"eighty":15.578104,"marketCap":137658208},{"date":"2022-12-02","current":-25.18229,"twenty":-31.887292,"median":-11.499373,"eighty":15.386829,"marketCap":136664286},{"date":"2022-12-09","current":-25.479898,"twenty":-31.887292,"median":-11.607243,"eighty":15.281063,"marketCap":138279409},{"date":"2022-12-16","current":-25.8004,"twenty":-31.887292,"median":-11.670705,"eighty":15.162248,"marketCap":140018773},{"date":"2022-12-23","current":-25.388327,"twenty":-31.887292,"median":-11.791645,"eighty":14.951019,"marketCap":137782448},{"date":"2022-12-30","current":-26.235367,"twenty":-31.887292,"median":-11.823169,"eighty":14.918014,"marketCap":142379337},{"date":"2023-01-06","current":-27.128194,"twenty":-31.887292,"median":-11.932742,"eighty":14.785997,"marketCap":147224708},{"date":"2023-01-13","current":-28.547559,"twenty":-31.887292,"median":-12.023447,"eighty":14.719988,"marketCap":154927604},{"date":"2023-01-20","current":-26.120902,"twenty":-31.887292,"median":-12.063912,"eighty":14.685063,"marketCap":141758136},{"date":"2023-01-27","current":-26.990836,"twenty":-31.887292,"median":-12.194778,"eighty":14.620974,"marketCap":146479266},{"date":"2023-02-03","current":-25.228076,"twenty":-31.887292,"median":-12.335875,"eighty":14.58797,"marketCap":136912766},{"date":"2023-02-10","current":-25.502791,"twenty":-31.887292,"median":-12.406423,"eighty":14.552525,"marketCap":138403649},{"date":"2023-02-17","current":-24.793109,"twenty":-31.887292,"median":-12.503194,"eighty":14.500444,"marketCap":134552201},{"date":"2023-02-24","current":-25.113611,"twenty":-31.887292,"median":-12.678538,"eighty":14.467353,"marketCap":136291565},{"date":"2023-03-03","current":-25.365434,"twenty":-31.887292,"median":-12.917738,"eighty":14.298416,"marketCap":137658208},{"date":"2023-03-10","current":-24.220784,"twenty":-31.887292,"median":-13.749115,"eighty":14.185464,"marketCap":131446195},{"date":"2023-03-17","current":-21.954378,"twenty":-31.887292,"median":-14.201174,"eighty":14.135349,"marketCap":119146409},{"date":"2023-03-24","current":-22.480917,"twenty":-31.887292,"median":-14.540704,"eighty":14.019358,"marketCap":122003935},{"date":"2023-03-31","current":-23.602673,"twenty":-31.881744,"median":-14.636657,"eighty":13.926338,"marketCap":128091708},{"date":"2023-04-06","current":-226.645675,"twenty":-32.203558,"median":-14.688325,"eighty":13.869988,"marketCap":128961389},{"date":"2023-04-14","current":-239.091536,"twenty":-32.708472,"median":-14.747373,"eighty":13.71861,"marketCap":136043084},{"date":"2023-04-21","current":-236.482789,"twenty":-33.318808,"median":-14.887614,"eighty":13.607415,"marketCap":134558707},{"date":"2023-04-28","current":-226.419691,"twenty":-34.445156,"median":-15.618339,"eighty":13.392255,"marketCap":128832804},{"date":"2023-05-02","current":-228.468188,"twenty":-34.545029,"median":-15.647864,"eighty":13.313134,"marketCap":129998399},{"date":"2023-05-12","current":-220.830761,"twenty":-35.205302,"median":-16.092474,"eighty":12.916413,"marketCap":125652703},{"date":"2023-05-19","current":-243.501254,"twenty":-47.03649,"median":-16.341755,"eighty":12.803461,"marketCap":130516672},{"date":"2023-05-26","current":-239.069718,"twenty":-48.291477,"median":-16.431773,"eighty":12.660056,"marketCap":128141369},{"date":"2023-06-02","current":-228.573974,"twenty":-49.474014,"median":-16.501017,"eighty":12.612107,"marketCap":122515650},{"date":"2023-06-09","current":-240.935629,"twenty":-50.974903,"median":-16.757223,"eighty":12.50894,"marketCap":129141497},{"date":"2023-06-16","current":-229.740168,"twenty":-51.87278,"median":-17.020353,"eighty":12.415681,"marketCap":123140730},{"date":"2023-06-23","current":-227.641019,"twenty":-52.178874,"median":-17.311181,"eighty":12.35621,"marketCap":122015586},{"date":"2023-06-30","current":-230.673123,"twenty":-52.638015,"median":-17.782926,"eighty":12.296741,"marketCap":123640794},{"date":"2023-07-07","current":-228.340735,"twenty":-53.352236,"median":-18.086722,"eighty":12.269558,"marketCap":122390634},{"date":"2023-07-14","current":-232.072556,"twenty":-53.903206,"median":-18.492192,"eighty":12.111564,"marketCap":124390890},{"date":"2023-07-21","current":-235.337897,"twenty":-54.719457,"median":-18.675067,"eighty":12.096706,"marketCap":126141113},{"date":"2023-07-28","current":-247.932791,"twenty":-54.872504,"median":-18.750619,"eighty":12.016488,"marketCap":132891976},{"date":"2023-08-04","current":-240.70239,"twenty":-55.760177,"median":-18.833806,"eighty":11.927757,"marketCap":129016481},{"date":"2023-08-11","current":-236.270853,"twenty":-57.06618,"median":-18.930788,"eighty":11.74363,"marketCap":126641177},{"date":"2023-08-18","current":3452.985,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":131213430},{"date":"2023-08-25","current":3502.079579,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":133079024},{"date":"2023-09-01","current":3554.447132,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":135068991},{"date":"2023-09-08","current":3613.360605,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":137307703},{"date":"2023-09-15","current":3727.914605,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":141660755},{"date":"2023-09-22","current":3960.295605,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":150491233},{"date":"2023-09-29","current":4866.908737,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":184942532},{"date":"2023-10-06","current":4254.863053,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":161684796},{"date":"2023-10-13","current":4660.711526,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":177107038},{"date":"2023-10-20","current":4880.000605,"twenty":-57.321259,"median":-18.936518,"eighty":11.692581,"marketCap":185440023},{"date":"2023-10-27","current":4519.973737,"twenty":-57.443696,"median":-18.93982,"eighty":11.483085,"marketCap":171759002},{"date":"2023-11-03","current":4817.814158,"twenty":-57.443696,"median":-18.93982,"eighty":11.483085,"marketCap":183076938},{"date":"2023-11-10","current":4680.349342,"twenty":-57.443696,"median":-18.93982,"eighty":11.483085,"marketCap":177853275},{"date":"2023-11-17","current":80.307197,"twenty":-57.443696,"median":-18.93982,"eighty":11.483085,"marketCap":183823175},{"date":"2023-11-24","current":85.088682,"twenty":-57.443696,"median":-18.93982,"eighty":11.483085,"marketCap":194767992},{"date":"2023-12-01","current":83.13262,"twenty":-57.443696,"median":-18.93982,"eighty":11.483085,"marketCap":190290567},{"date":"2023-12-08","current":72.156941,"twenty":-57.341665,"median":-18.938169,"eighty":11.488491,"marketCap":165167237},{"date":"2023-12-15","current":70.526889,"twenty":-57.341665,"median":-18.938169,"eighty":11.488491,"marketCap":161436050},{"date":"2023-12-22","current":79.437837,"twenty":-57.341665,"median":-18.938169,"eighty":11.785841,"marketCap":181833209},{"date":"2023-12-29","current":86.664398,"twenty":-57.443696,"median":-18.93982,"eighty":11.88721,"marketCap":198374807},{"date":"2024-01-05","current":83.78464,"twenty":-57.545728,"median":-18.954582,"eighty":11.915593,"marketCap":191783042},{"date":"2024-01-12","current":77.64478,"twenty":-57.545728,"median":-18.954582,"eighty":11.915593,"marketCap":177728902},{"date":"2024-01-19","current":77.373105,"twenty":-57.647759,"median":-18.969344,"eighty":11.992634,"marketCap":177107038},{"date":"2024-01-26","current":84.654001,"twenty":-57.545728,"median":-18.954582,"eighty":12.106167,"marketCap":193773009},{"date":"2024-02-02","current":80.687543,"twenty":-57.545728,"median":-18.954582,"eighty":12.284576,"marketCap":184693786},{"date":"2024-02-09","current":80.959218,"twenty":-57.545728,"median":-18.954582,"eighty":12.419735,"marketCap":185315650},{"date":"2024-02-16","current":82.91528,"twenty":-57.545728,"median":-18.954582,"eighty":12.583277,"marketCap":189793075},{"date":"2024-02-23","current":84.654001,"twenty":-57.545728,"median":-18.954582,"eighty":55.015272,"marketCap":193773009},{"date":"2024-03-01","current":90.902532,"twenty":-57.443696,"median":-18.93982,"eighty":58.347471,"marketCap":208075895},{"date":"2024-03-08","current":96.064361,"twenty":-57.443696,"median":-18.93982,"eighty":60.142778,"marketCap":219891322},{"date":"2024-03-15","current":96.390371,"twenty":-57.300852,"median":-18.936518,"eighty":62.169298,"marketCap":220637560},{"date":"2024-03-22","current":99.541804,"twenty":-55.831599,"median":-18.899168,"eighty":63.107754,"marketCap":227851189},{"date":"2024-03-28","current":107.36605,"twenty":-55.035754,"median":-18.792199,"eighty":63.951005,"marketCap":245760889},{"date":"2024-04-05","current":61.700672,"twenty":-54.780675,"median":-18.684404,"eighty":64.223021,"marketCap":292893092},{"date":"2024-04-12","current":61.281475,"twenty":-54.025643,"median":-18.516329,"eighty":64.223021,"marketCap":290903160},{"date":"2024-04-19","current":61.255275,"twenty":-53.535892,"median":-18.283848,"eighty":64.223021,"marketCap":290778790},{"date":"2024-04-26","current":63.325064,"twenty":-52.729843,"median":-17.862184,"eighty":64.141416,"marketCap":300604078},{"date":"2024-05-03","current":58.792488,"twenty":-52.158467,"median":-17.552179,"eighty":64.141416,"marketCap":279087940},{"date":"2024-05-10","current":61.595873,"twenty":-51.464654,"median":-17.034202,"eighty":64.141416,"marketCap":292395609},{"date":"2024-05-17","current":31.35849,"twenty":-50.883075,"median":-16.757223,"eighty":64.141416,"marketCap":297121697},{"date":"2024-05-24","current":28.759503,"twenty":-49.219963,"median":-16.507942,"eighty":64.141416,"marketCap":272496291},{"date":"2024-05-31","current":28.56261,"twenty":-47.740506,"median":-16.438697,"eighty":64.141416,"marketCap":270630730},{"date":"2024-06-07","current":26.370535,"twenty":-46.179425,"median":-16.341755,"eighty":64.141416,"marketCap":249860816},{"date":"2024-06-14","current":24.834769,"twenty":-34.866843,"median":-16.092474,"eighty":64.141416,"marketCap":235309440},{"date":"2024-06-21","current":24.821643,"twenty":-34.461801,"median":-15.718552,"eighty":64.223021,"marketCap":235185069},{"date":"2024-06-28","current":26.409913,"twenty":-33.268871,"median":-15.249932,"eighty":64.223021,"marketCap":250233928},{"date":"2024-07-05","current":25.504205,"twenty":-32.797248,"median":-14.85809,"eighty":64.223021,"marketCap":241652347},{"date":"2024-07-12","current":26.738068,"twenty":-32.103684,"median":-14.747373,"eighty":64.223021,"marketCap":253343197},{"date":"2024-07-19","current":26.908709,"twenty":-31.576576,"median":-14.673563,"eighty":64.223021,"marketCap":254960017},{"date":"2024-07-26","current":26.69869,"twenty":-30.406121,"median":-14.570228,"eighty":64.223021,"marketCap":252970085},{"date":"2024-08-02","current":24.217838,"twenty":-30.075723,"median":-14.252842,"eighty":64.223021,"marketCap":229464015},{"date":"2024-08-09","current":25.267934,"twenty":-28.969868,"median":-13.807904,"eighty":64.223021,"marketCap":239413674},{"date":"2024-08-16","current":20.481093,"twenty":-28.308816,"median":-13.071593,"eighty":64.223021,"marketCap":270780525},{"date":"2024-08-23","current":20.462233,"twenty":-28.121992,"median":-12.717153,"eighty":64.223021,"marketCap":270531187},{"date":"2024-08-30","current":20.679114,"twenty":-28.089612,"median":-12.525357,"eighty":64.223021,"marketCap":273398568},{"date":"2024-09-06","current":18.010537,"twenty":-28.030258,"median":-12.436495,"eighty":64.223021,"marketCap":238117312},{"date":"2024-09-13","current":18.434869,"twenty":-27.998127,"median":-12.36378,"eighty":64.223021,"marketCap":243727406},{"date":"2024-09-20","current":18.755476,"twenty":-27.925747,"median":-12.222373,"eighty":64.223021,"marketCap":247966143},{"date":"2024-09-27","current":18.227418,"twenty":-27.545008,"median":-12.098008,"eighty":64.223021,"marketCap":240984693},{"date":"2024-10-04","current":19.057223,"twenty":-27.288894,"median":-12.029304,"eighty":64.223021,"marketCap":251955543},{"date":"2024-10-11","current":19.415548,"twenty":-27.172735,"median":-11.937781,"eighty":64.223021,"marketCap":256692956},{"date":"2024-10-18","current":18.576313,"twenty":-27.015535,"median":-11.822525,"eighty":64.223021,"marketCap":245597437},{"date":"2024-10-25","current":19.085512,"twenty":-26.886355,"median":-11.762006,"eighty":64.223021,"marketCap":252329550},{"date":"2024-11-01","current":18.019967,"twenty":-26.847039,"median":-11.643915,"eighty":64.223021,"marketCap":238241981},{"date":"2024-11-08","current":22.18785,"twenty":-26.818956,"median":-11.601522,"eighty":64.223021,"marketCap":293345568},{"date":"2024-11-15","current":19.374178,"twenty":-26.818956,"median":-11.601522,"eighty":64.223021,"marketCap":311226799},{"date":"2024-11-22","current":21.649382,"twenty":-26.818956,"median":-11.601522,"eighty":64.223021,"marketCap":347775677},{"date":"2024-11-29","current":21.5562,"twenty":-26.818956,"median":-11.601522,"eighty":64.223021,"marketCap":346278795},{"date":"2024-12-06","current":20.181759,"twenty":-26.818956,"median":-11.601522,"eighty":64.223021,"marketCap":324199779},{"date":"2024-12-13","current":20.11488,"twenty":-26.818956,"median":-11.514491,"eighty":64.223021,"marketCap":323125432},{"date":"2024-12-20","current":19.228488,"twenty":-26.818956,"median":-11.369193,"eighty":64.223021,"marketCap":308886429},{"date":"2024-12-27","current":19.803865,"twenty":-26.818956,"median":-11.303781,"eighty":64.223021,"marketCap":318129290},{"date":"2025-01-03","current":21.568874,"twenty":-26.818956,"median":-11.276939,"eighty":64.223021,"marketCap":346482392},{"date":"2025-01-10","current":20.542525,"twenty":-26.818956,"median":-11.219443,"eighty":64.304625,"marketCap":329995126},{"date":"2025-01-17","current":21.763258,"twenty":-26.818956,"median":-11.03577,"eighty":64.304625,"marketCap":349604980},{"date":"2025-01-24","current":21.91099,"twenty":-26.818956,"median":-10.9753,"eighty":64.304625,"marketCap":351978147},{"date":"2025-01-31","current":20.348141,"twenty":-26.818956,"median":-10.91483,"eighty":64.304625,"marketCap":326872538},{"date":"2025-02-07","current":19.904945,"twenty":-26.818956,"median":-10.91483,"eighty":64.304625,"marketCap":319753036},{"date":"2025-02-14","current":21.413367,"twenty":-26.818956,"median":-10.91483,"eighty":64.304625,"marketCap":343984321},{"date":"2025-02-21","current":20.589177,"twenty":-26.818956,"median":-10.885133,"eighty":64.304625,"marketCap":330744547},{"date":"2025-02-28","current":19.990474,"twenty":-26.818956,"median":-10.532245,"eighty":64.304625,"marketCap":321126975},{"date":"2025-03-07","current":16.833674,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":270416142},{"date":"2025-03-14","current":17.603436,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":282781591},{"date":"2025-03-21","current":15.717548,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":270766201},{"date":"2025-03-28","current":15.790146,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":272016853},{"date":"2025-04-04","current":13.031408,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":224492069},{"date":"2025-04-11","current":13.445219,"twenty":-26.818956,"median":-10.532245,"eighty":64.304625,"marketCap":231620787},{"date":"2025-04-17","current":14.149423,"twenty":-26.818956,"median":-10.532245,"eighty":64.304625,"marketCap":243752113},{"date":"2025-04-25","current":14.179506,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":244270352},{"date":"2025-05-02","current":13.845358,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":238513981},{"date":"2025-05-09","current":14.862331,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":256033371},{"date":"2025-05-16","current":18.348898,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":311619334},{"date":"2025-05-23","current":17.743908,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":301344792},{"date":"2025-05-30","current":18.053781,"twenty":-26.818956,"median":-10.675258,"eighty":64.38623,"marketCap":306607362},{"date":"2025-06-06","current":18.216095,"twenty":-26.818956,"median":-10.44363,"eighty":64.38623,"marketCap":309363947},{"date":"2025-06-13","current":18.880109,"twenty":-26.818956,"median":-9.810158,"eighty":64.38623,"marketCap":320640883},{"date":"2025-06-20","current":20.215513,"twenty":-26.818956,"median":-9.810158,"eighty":64.467835,"marketCap":343320054},{"date":"2025-06-27","current":19.529366,"twenty":-26.818956,"median":-9.810158,"eighty":64.467835,"marketCap":331667220},{"date":"2025-07-03","current":18.821085,"twenty":-26.818956,"median":-9.810158,"eighty":64.467835,"marketCap":319638488},{"date":"2025-07-11","current":18.223473,"twenty":-26.818956,"median":-9.810158,"eighty":64.467835,"marketCap":309489246},{"date":"2025-07-18","current":18.134938,"twenty":-26.818956,"median":-9.810158,"eighty":64.467835,"marketCap":307985654},{"date":"2025-07-25","current":17.9136,"twenty":-26.818956,"median":-9.810158,"eighty":64.467835,"marketCap":304226676},{"date":"2025-08-01","current":17.77342,"twenty":-26.818956,"median":-9.810158,"eighty":64.467835,"marketCap":301845989},{"date":"2025-08-08","current":17.758664,"twenty":-26.818956,"median":-9.810158,"eighty":64.467835,"marketCap":301595391},{"date":"2025-08-15","current":17.048757,"twenty":-26.818956,"median":-9.237899,"eighty":64.467835,"marketCap":305530769},{"date":"2025-08-22","current":18.105556,"twenty":-26.818956,"median":13.220164,"eighty":64.467835,"marketCap":324469663},{"date":"2025-08-29","current":18.546472,"twenty":-26.818956,"median":13.445219,"eighty":64.467835,"marketCap":332371321},{"date":"2025-09-05","current":18.966392,"twenty":-26.818956,"median":13.786834,"eighty":64.524283,"marketCap":339896709},{"date":"2025-09-12","current":18.60946,"twenty":-26.818956,"median":13.99064,"eighty":64.467835,"marketCap":333500129},{"date":"2025-09-19","current":19.13436,"twenty":-26.818956,"median":14.608087,"eighty":64.467835,"marketCap":342906864},{"date":"2025-09-26","current":19.890216,"twenty":-26.818956,"median":15.790146,"eighty":64.467835,"marketCap":356452563},{"date":"2025-10-03","current":18.71444,"twenty":-26.818956,"median":16.08054,"eighty":64.467835,"marketCap":335381476},{"date":"2025-10-10","current":18.966392,"twenty":-26.818956,"median":16.378193,"eighty":64.467835,"marketCap":339896709},{"date":"2025-10-17","current":18.259526,"twenty":-26.818956,"median":17.048757,"eighty":64.467835,"marketCap":327228972},{"date":"2025-10-24","current":19.596272,"twenty":-26.818956,"median":17.409051,"eighty":64.467835,"marketCap":351184792},{"date":"2025-10-31","current":19.512288,"twenty":-26.818956,"median":17.611106,"eighty":64.467835,"marketCap":349679714},{"date":"2025-11-07","current":20.198158,"twenty":-26.818956,"median":17.66464,"eighty":64.467835,"marketCap":361971182},{"date":"2025-11-14","current":19.891315,"twenty":-26.818956,"median":17.741625,"eighty":64.467835,"marketCap":371788564},{"date":"2025-11-21","current":20.509976,"twenty":-26.818956,"median":17.741625,"eighty":63.447774,"marketCap":383351968},{"date":"2025-11-28","current":21.007595,"twenty":-26.818956,"median":17.741625,"eighty":63.107754,"marketCap":392652967},{"date":"2025-12-05","current":21.713677,"twenty":-26.818956,"median":17.741625,"eighty":62.329469,"marketCap":405850329},{"date":"2025-12-12","current":22.520627,"twenty":-26.818956,"median":17.741625,"eighty":61.884071,"marketCap":420933030},{"date":"2025-12-19","current":21.370723,"twenty":-26.818956,"median":17.741625,"eighty":61.360074,"marketCap":399440182},{"date":"2025-12-26","current":22.870305,"twenty":-26.818956,"median":17.741625,"eighty":61.255275,"marketCap":427468867},{"date":"2026-01-02","current":22.62822,"twenty":-26.818956,"median":17.741625,"eighty":60.626478,"marketCap":422944057},{"date":"2026-01-09","current":23.462068,"twenty":-26.818956,"median":17.741625,"eighty":60.33828,"marketCap":438529514},{"date":"2026-01-16","current":22.998072,"twenty":-26.818956,"median":17.741625,"eighty":59.657083,"marketCap":429856961},{"date":"2026-01-23","current":23.280504,"twenty":-26.818956,"median":17.741625,"eighty":59.002087,"marketCap":435135906},{"date":"2026-01-30","current":23.213258,"twenty":-26.818956,"median":17.741625,"eighty":59.002087,"marketCap":433879014},{"date":"2026-02-06","current":23.381373,"twenty":-26.818956,"median":17.741625,"eighty":58.211463,"marketCap":437021244},{"date":"2026-02-13","current":24.470755,"twenty":-26.818956,"median":17.741625,"eighty":30.557792,"marketCap":457382889},{"date":"2026-02-20","current":25.250807,"twenty":-26.818956,"median":17.741625,"eighty":28.56261,"marketCap":471962833},{"date":"2026-02-27","current":25.822396,"twenty":-26.818956,"median":17.741625,"eighty":28.090067,"marketCap":482646412},{"date":"2026-03-06","current":25.217184,"twenty":-26.818956,"median":17.741625,"eighty":27.433757,"marketCap":471334387},{"date":"2026-03-13","current":24.322815,"twenty":-26.818956,"median":17.741625,"eighty":26.882456,"marketCap":454617727},{"date":"2026-03-20","current":24.937754,"twenty":-26.818956,"median":17.741625,"eighty":26.567428,"marketCap":496959553},{"date":"2026-03-27","current":25.038818,"twenty":-26.818956,"median":17.741625,"eighty":26.423039,"marketCap":498973573},{"date":"2026-04-02","current":23.617594,"twenty":-26.818956,"median":17.741625,"eighty":26.252399,"marketCap":470651410},{"date":"2026-04-10","current":24.141868,"twenty":-26.818956,"median":17.741625,"eighty":25.858613,"marketCap":481099142},{"date":"2026-04-17","current":24.331364,"twenty":-26.818956,"median":17.741625,"eighty":25.728252,"marketCap":484875430},{"date":"2026-04-24","current":24.255566,"twenty":-26.818956,"median":17.741625,"eighty":25.573587,"marketCap":483364915},{"date":"2026-05-01","current":25.72398,"twenty":-26.818956,"median":17.741625,"eighty":25.464827,"marketCap":512627471},{"date":"2026-05-08","current":25.022244,"twenty":-26.818956,"median":17.741625,"eighty":25.439095,"marketCap":498643286},{"date":"2026-05-15","current":24.282877,"twenty":-26.818956,"median":17.743908,"eighty":25.267934,"marketCap":530265182},{"date":"2026-05-22","current":24.438647,"twenty":-26.678543,"median":17.790045,"eighty":25.267934,"marketCap":533666741},{"date":"2026-05-29","current":23.798258,"twenty":-26.532976,"median":17.836132,"eighty":25.298132,"marketCap":519682556},{"date":"2026-06-05","current":23.86172,"twenty":-26.395618,"median":17.920978,"eighty":25.267934,"marketCap":521068376},{"date":"2026-06-12","current":24.473263,"twenty":-26.212474,"median":17.972624,"eighty":25.267934,"marketCap":534422643},{"date":"2026-06-18","current":24.092491,"twenty":-26.120902,"median":18.019967,"eighty":25.267934,"marketCap":526107722},{"date":"2026-06-26","current":25.021344,"twenty":-26.014891,"median":18.068537,"eighty":25.418922,"marketCap":546391090},{"date":"2026-07-02","current":23.613641,"twenty":-25.937758,"median":18.134938,"eighty":25.418922,"marketCap":515651079},{"date":"2026-07-10","current":23.172434,"twenty":-25.788358,"median":18.202818,"eighty":25.418922,"marketCap":506016450},{"date":"2026-07-17","current":22.917856,"twenty":-25.669697,"median":18.236847,"eighty":25.418922,"marketCap":500457218},{"date":"2026-07-24","current":22.489701,"twenty":-25.60352,"median":18.300971,"eighty":25.418922,"marketCap":491107601},{"date":"2026-07-31","current":20.76551,"twenty":-25.541141,"median":18.364506,"eighty":25.418922,"marketCap":453456440},{"date":"2026-08-07","current":21.06059,"twenty":-25.459739,"median":18.444299,"eighty":25.418922,"marketCap":459900095},{"date":"2026-08-14","current":23.139948,"twenty":-25.378337,"median":18.490482,"eighty":25.418922,"marketCap":473882990},{"date":"2026-08-21","current":22.371555,"twenty":-25.319648,"median":18.525476,"eighty":25.418922,"marketCap":458147083},{"date":"2026-08-28","current":22.295976,"twenty":-25.250968,"median":18.548102,"eighty":25.418922,"marketCap":456599289},{"date":"2026-08-31","current":21.848797,"twenty":-25.241199,"median":18.576313,"eighty":25.418922,"marketCap":447441506}],"updateTime":1788293568078},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"NGS\",pageSize:20,pageCount:8,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"14972932","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499122000062-NGS","pdf_url":"","pub_time":1654185600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"NGS","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000062/0001084991-22-000062-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 4.01: Changes in Registrant's Certifying Accountant;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-16.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000062/ex161mossadamssecletter.htm","primary":true,"translateUrl":"","linkName":"ex161mossadamssecletter.htm","type":"EX-16.1","id":"NTFILE2A23SrfGyQpb7HNw","market":"us","size":2322},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000062/ngs-20220526.htm","primary":false,"translateUrl":"","linkName":"ngs-20220526.htm","type":"8-K","id":"NTFILE7uoExP4syfCMNaZz","market":"us","size":37189}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-06-03 00:00","pubTimestamp":1654185600,"title_zh":"8-K  - Current report","summary_en":"Item 4.01: Changes in Registrant's Certifying Accountant;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14887405","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499122000056-NGS","pdf_url":"","pub_time":1652889600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"NGS","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000056/0001084991-22-000056-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-10.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000056/ex10151922-retirementagree.htm","primary":true,"translateUrl":"","linkName":"ex10151922-retirementagree.htm","type":"EX-10.1","id":"NTFILEC4n1MrRimSReNdNC","market":"us","size":95714},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000056/ngs-20220517.htm","primary":false,"translateUrl":"","linkName":"ngs-20220517.htm","type":"8-K","id":"NTFILEAiMust2oaXkh9WF2","market":"us","size":44189},{"description":"EX-99.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000056/ex991pressrelease.htm","primary":false,"translateUrl":"","linkName":"ex991pressrelease.htm","type":"EX-99.1","id":"NTFILEGvFLsbYyAsrsjuJp","market":"us","size":12688},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000056/a87554fc6-a2ffx461cxb6ecxd.jpg","primary":false,"translateUrl":"","linkName":"a87554fc6-a2ffx461cxb6ecxd.jpg","type":"GRAPHIC","id":"NTFILE4MPRS9jTKaWpQRLb","market":"us","size":69478}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-05-19 00:00","pubTimestamp":1652889600,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14868092","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499122000047-NGS","pdf_url":"","pub_time":1652630400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"NGS","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000047/0001084991-22-000047-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000047/ngs-20220331.htm","primary":true,"translateUrl":"","linkName":"ngs-20220331.htm","type":"10-Q","id":"NTFILEGWHzUrmptGG6XZKi","market":"us","size":904250},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000047/ngs033122-ex311.htm","primary":false,"translateUrl":"","linkName":"ngs033122-ex311.htm","type":"EX-31.1","id":"NTFILE7MKdnTh3g7nKxxCu","market":"us","size":11778},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000047/ngs033122-ex312.htm","primary":false,"translateUrl":"","linkName":"ngs033122-ex312.htm","type":"EX-31.2","id":"NTFILE2297ckLzyVCkppJD","market":"us","size":10223},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000047/ngs033122-ex321.htm","primary":false,"translateUrl":"","linkName":"ngs033122-ex321.htm","type":"EX-32.1","id":"NTFILE6abbscjiuBMWUvkH","market":"us","size":7235},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000047/ngs033122-ex322.htm","primary":false,"translateUrl":"","linkName":"ngs033122-ex322.htm","type":"EX-32.2","id":"NTFILEDswAiNPx1twkw42f","market":"us","size":7277}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2022-05-16 00:00","pubTimestamp":1652630400,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14868091","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499122000048-NGS","pdf_url":"","pub_time":1652630400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"NGS","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000048/0001084991-22-000048-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000048/ngsq12022earningsreleaseex.htm","primary":true,"translateUrl":"","linkName":"ngsq12022earningsreleaseex.htm","type":"EX-99","id":"NTFILE4w4aJ1QvNUNhewwQ","market":"us","size":219279},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000048/ngs-20220516.htm","primary":false,"translateUrl":"","linkName":"ngs-20220516.htm","type":"8-K","id":"NTFILE8Nz5tsusczGTH5jb","market":"us","size":34080},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000048/image1a.jpg","primary":false,"translateUrl":"","linkName":"image1a.jpg","type":"GRAPHIC","id":"NTFILE5rrDpBe4UQEw98G4","market":"us","size":6502}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-05-16 00:00","pubTimestamp":1652630400,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14784846","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499122000042-NGS","pdf_url":"","pub_time":1651420800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"NGS","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000042/0001084991-22-000042-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000042/ngs-20220426.htm","primary":true,"translateUrl":"","linkName":"ngs-20220426.htm","type":"8-K","id":"NTFILEEx4rnztF1XZWrGpn","market":"us","size":36102}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-05-02 00:00","pubTimestamp":1651420800,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14778625","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499122000036-NGS","pdf_url":"","pub_time":1651161600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-K/A [Amend]  - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"NGS","title":"10-K/A [Amend]  - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"[Rev.]Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000036/0001084991-22-000036-index.htm","us_notice_code":"Form 10-K/A","us_title_en":"10-K/A [Amend]  - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000036/ngs-form10xkxayrended12x31.htm","primary":true,"translateUrl":"","linkName":"ngs-form10xkxayrended12x31.htm","type":"10-K/A","id":"NTFILE4UFjyBng6a1UVMvX","market":"us","size":525786},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000036/certificationoftaylorex311.htm","primary":false,"translateUrl":"","linkName":"certificationoftaylorex311.htm","type":"EX-31.1","id":"NTFILEBHDE52aqffa6wncb","market":"us","size":4434},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000036/certificationoffosterex312.htm","primary":false,"translateUrl":"","linkName":"certificationoffosterex312.htm","type":"EX-31.2","id":"NTFILE9dD1Hzvw2beC6yaE","market":"us","size":4385}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"[Rev.]Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"[Rev.]Annual Report","pubTime":"2022-04-29 00:00","pubTimestamp":1651161600,"title_zh":"10-K/A [Amend]  - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14411231","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499122000009-NGS","pdf_url":"","pub_time":1647532800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"NGS","title":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000009/0001084991-22-000009-index.htm","us_notice_code":"Form 10-K","us_title_en":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000009/ngs-20211231.htm","primary":true,"translateUrl":"","linkName":"ngs-20211231.htm","type":"10-K","id":"NTFILE3JAvt4Tf7bvAsYnQ","market":"us","size":1631862},{"description":"EX-21.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000009/a123121-ngsxex211subsidiar.htm","primary":false,"translateUrl":"","linkName":"a123121-ngsxex211subsidiar.htm","type":"EX-21.1","id":"NTFILEJ4FESzAwxntvhiQX","market":"us","size":3357},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000009/a123121-ex231mossadamscons.htm","primary":false,"translateUrl":"","linkName":"a123121-ex231mossadamscons.htm","type":"EX-23.1","id":"NTFILE9VrnRHVZxiQRWCMT","market":"us","size":3063},{"description":"EX-31.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000009/a123121-ngsxex311taylor.htm","primary":false,"translateUrl":"","linkName":"a123121-ngsxex311taylor.htm","type":"EX-31.1","id":"NTFILE9pbjRT6f59wE5wAt","market":"us","size":13689},{"description":"EX-31.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000009/a123121-ngsxex312foster.htm","primary":false,"translateUrl":"","linkName":"a123121-ngsxex312foster.htm","type":"EX-31.2","id":"NTFILE645X88xfdbMGmJBc","market":"us","size":12166},{"description":"EX-32.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000009/a123121-ngsxex321taylor.htm","primary":false,"translateUrl":"","linkName":"a123121-ngsxex321taylor.htm","type":"EX-32.1","id":"NTFILEFnPX2hsKcAUVc7va","market":"us","size":9059},{"description":"EX-32.2","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000009/a123121-ngsxex322foster.htm","primary":false,"translateUrl":"","linkName":"a123121-ngsxex322foster.htm","type":"EX-32.2","id":"NTFILEFVk8Wy139Vs1kqWt","market":"us","size":9061}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2022-03-18 00:00","pubTimestamp":1647532800,"title_zh":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14397063","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499122000007-NGS","pdf_url":"","pub_time":1647446400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"NGS","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000007/0001084991-22-000007-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000007/a2021q4earningsreleaseex99.htm","primary":true,"translateUrl":"","linkName":"a2021q4earningsreleaseex99.htm","type":"EX-99.1","id":"NTFILEGLz14bERxDzdkGVA","market":"us","size":265992},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000007/q420218k.htm","primary":false,"translateUrl":"","linkName":"q420218k.htm","type":"8-K","id":"NTFILE8YzS9e9P3KJbRfdV","market":"us","size":26147},{"description":"","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499122000007/image1.jpg","primary":false,"translateUrl":"","linkName":"image1.jpg","type":"GRAPHIC","id":"NTFILEBSafXe6KFdH9Qbhq","market":"us","size":61443}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-03-17 00:00","pubTimestamp":1647446400,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14166379","market":"us","labels":[],"media":"sec.gov","original_id":"AN35420422001583-NGS","pdf_url":"","pub_time":1644249600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"NGS","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000035420422001583/0000354204-22-001583-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"SEC SCHEDULE 13G","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/354204/000035420422001583/SEC13G_Filing.htm","primary":true,"translateUrl":"","linkName":"SEC13G_Filing.htm","type":"SC 13G/A","id":"NTFILEEhNbTghjS8rnGueW","market":"us","size":17696}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2022-02-08 00:00","pubTimestamp":1644249600,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14166380","market":"us","labels":[],"media":"sec.gov","original_id":"AN102387522000018-NGS","pdf_url":"","pub_time":1643731200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"NGS","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000102387522000018/0001023875-22-000018-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1023875/000102387522000018/natu21a41.htm","primary":true,"translateUrl":"","linkName":"natu21a41.htm","type":"SC 13G/A","id":"NTFILE2Bs8Qgh4RagwBjM7","market":"us","size":91014}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2022-02-02 00:00","pubTimestamp":1643731200,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"13912250","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000102-NGS","pdf_url":"","pub_time":1639324800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"CORRESP [Cover] - Correspondence","symbol":"NGS","title":"CORRESP [Cover] - Correspondence","titleType":"Correspondence","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000102/0001084991-21-000102-index.htm","us_notice_code":"Form CORRESP","us_title_en":"CORRESP [Cover] - Correspondence","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000102/filename1.htm","primary":true,"translateUrl":"","linkName":"filename1.htm","type":"CORRESP","id":"NTFILEEBVwZ6DQNP2gkaRt","market":"us","size":6034},{"description":"","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000102/logoforworkiva.jpg","primary":false,"translateUrl":"","linkName":"logoforworkiva.jpg","type":"GRAPHIC","id":"NTFILEVw8TUuLNi93Egw1D","market":"us","size":5992}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Correspondence","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Correspondence","pubTime":"2021-12-13 00:00","pubTimestamp":1639324800,"title_zh":"CORRESP [Cover] - Correspondence","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"13575658","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000085-NGS","pdf_url":"","pub_time":1633536000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"4  - Statement of changes in beneficial ownership of securities","symbol":"NGS","title":"4  - Statement of changes in beneficial ownership of securities","titleType":"Statement Of Changes In Beneficial Ownership","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000085/0001084991-21-000085-index.htm","us_notice_code":"Form 4","us_title_en":"4  - Statement of changes in beneficial ownership of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 4","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000085/xslF345X03/wf-form4_163364493091051.xml","primary":true,"translateUrl":"","linkName":"wf-form4_163364493091051.html","type":"4","id":"NTFILE6FkPzg5p1rMurqvT","market":"us","size":0}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Statement Of Changes In Beneficial Ownership","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Statement Of Changes In Beneficial Ownership","pubTime":"2021-10-07 00:00","pubTimestamp":1633536000,"title_zh":"4  - Statement of changes in beneficial ownership of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"13575660","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000081-NGS","pdf_url":"","pub_time":1631548800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"4  - Statement of changes in beneficial ownership of securities","symbol":"NGS","title":"4  - Statement of changes in beneficial ownership of securities","titleType":"Statement Of Changes In Beneficial Ownership","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000081/0001084991-21-000081-index.htm","us_notice_code":"Form 4","us_title_en":"4  - Statement of changes in beneficial ownership of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 4","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000081/xslF345X03/wf-form4_163165468196222.xml","primary":true,"translateUrl":"","linkName":"wf-form4_163165468196222.html","type":"4","id":"NTFILE7dRA3CT29FLu24VE","market":"us","size":0}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Statement Of Changes In Beneficial Ownership","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Statement Of Changes In Beneficial Ownership","pubTime":"2021-09-14 00:00","pubTimestamp":1631548800,"title_zh":"4  - Statement of changes in beneficial ownership of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"13575661","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000079-NGS","pdf_url":"","pub_time":1630252800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"4  - Statement of changes in beneficial ownership of securities","symbol":"NGS","title":"4  - Statement of changes in beneficial ownership of securities","titleType":"Statement Of Changes In Beneficial Ownership","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000079/0001084991-21-000079-index.htm","us_notice_code":"Form 4","us_title_en":"4  - Statement of changes in beneficial ownership of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 4","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000079/xslF345X03/wf-form4_163035506684421.xml","primary":true,"translateUrl":"","linkName":"wf-form4_163035506684421.html","type":"4","id":"NTFILEGpYQ4tX65XsesqPM","market":"us","size":0}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Statement Of Changes In Beneficial Ownership","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Statement Of Changes In Beneficial Ownership","pubTime":"2021-08-30 00:00","pubTimestamp":1630252800,"title_zh":"4  - Statement of changes in beneficial ownership of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"12744212","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000057-NGS","pdf_url":null,"pub_time":1620921600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"NGS","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/0001084991-21-000057-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":true,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/ngs-20210331.htm","primary":true,"translateUrl":null,"linkName":"ngs-20210331.htm","type":"10-Q","id":"NTFILE7NxkaHb27AdomU6G","market":"us","size":858719},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/creditagreementngsandtcb-m.htm","primary":false,"translateUrl":null,"linkName":"creditagreementngsandtcb-m.htm","type":"EX-10.1","id":"NTFILE8dkP2HU7M45orFR7","market":"us","size":1462200},{"description":"EX-10.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/pledgeandsecurityagreement.htm","primary":false,"translateUrl":null,"linkName":"pledgeandsecurityagreement.htm","type":"EX-10.2","id":"NTFILE54q3xwn9NTAASzXK","market":"us","size":742402},{"description":"EX-10.3","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/promissorynote-may2021xex1.htm","primary":false,"translateUrl":null,"linkName":"promissorynote-may2021xex1.htm","type":"EX-10.3","id":"NTFILE84DCWori3UxojsdC","market":"us","size":11581},{"description":"EX-31.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/ngs033121-ex311.htm","primary":false,"translateUrl":null,"linkName":"ngs033121-ex311.htm","type":"EX-31.1","id":"NTFILE66cBfYBEEejcaDfx","market":"us","size":11778},{"description":"EX-31.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/ngs033121-ex312.htm","primary":false,"translateUrl":null,"linkName":"ngs033121-ex312.htm","type":"EX-31.2","id":"NTFILE8oP1v6yaR9MtDhLb","market":"us","size":10223},{"description":"EX-32.1","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/ngs033121-ex321.htm","primary":false,"translateUrl":null,"linkName":"ngs033121-ex321.htm","type":"EX-32.1","id":"NTFILE9XcbcP8RKCysBb6C","market":"us","size":7235},{"description":"EX-32.2","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/ngs033121-ex322.htm","primary":false,"translateUrl":null,"linkName":"ngs033121-ex322.htm","type":"EX-32.2","id":"NTFILE6sk3fFHmrUj43BoL","market":"us","size":7277},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/image_01.jpg","primary":false,"translateUrl":null,"linkName":"image_01.jpg","type":"GRAPHIC","id":"NTFILEHEv7yUc96rTfJj8M","market":"us","size":301},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/image_31.jpg","primary":false,"translateUrl":null,"linkName":"image_31.jpg","type":"GRAPHIC","id":"NTFILEBR4oWqGgeeAiMDDL","market":"us","size":1438},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/image_41.jpg","primary":false,"translateUrl":null,"linkName":"image_41.jpg","type":"GRAPHIC","id":"NTFILE6J7x3hxLd8VSYUs5","market":"us","size":19724},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/image_51.jpg","primary":false,"translateUrl":null,"linkName":"image_51.jpg","type":"GRAPHIC","id":"NTFILE8yufiEPHAcD4fBdQ","market":"us","size":1505},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/image_61.jpg","primary":false,"translateUrl":null,"linkName":"image_61.jpg","type":"GRAPHIC","id":"NTFILEHcrSsoj437f7EE1W","market":"us","size":668},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/image_71.jpg","primary":false,"translateUrl":null,"linkName":"image_71.jpg","type":"GRAPHIC","id":"NTFILEDbih4rHdT4tSdiPD","market":"us","size":600},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/image_81.jpg","primary":false,"translateUrl":null,"linkName":"image_81.jpg","type":"GRAPHIC","id":"NTFILE2T2nzY7WR4QVSHtS","market":"us","size":1796}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[{"id":88187,"name":"Condensed Consolidated Balance Sheets","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/R2.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":88188,"name":"Condensed Consolidated Balance Sheets (Parentheticals)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/R3.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":88189,"name":"Condensed Consolidated Statements of Operations","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/R4.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":88190,"name":"Condensed Consolidated Statements of Stockholders' Equity","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/R5.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":88191,"name":"Condensed Consolidated Statements of Cash Flows","name_zh":"简明综合现金流量表","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000057/R6.htm","cdn_url":"https://static.tigerbbs.com/ad089e3fa6158100d1e7db854d0a901e","translation_url":"https://static.tigerbbs.com/1838a387c934e9d489adda5970f6fe6a","translate_status":1}],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2021-05-14 00:00","pubTimestamp":1620921600,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"12734522","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000052-NGS","pdf_url":null,"pub_time":1620835200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"NGS","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000052/0001084991-21-000052-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000052/ngsq12021earningsreleaseex.htm","primary":true,"translateUrl":null,"linkName":"ngsq12021earningsreleaseex.htm","type":"EX-99","id":"NTFILEDTNQ4yzYDujeEV1r","market":"us","size":226033},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000052/ngs-20210513.htm","primary":false,"translateUrl":null,"linkName":"ngs-20210513.htm","type":"8-K","id":"NTFILE4yJ7cdsNaEgp6rZY","market":"us","size":33983},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000052/image11a.jpg","primary":false,"translateUrl":null,"linkName":"image11a.jpg","type":"GRAPHIC","id":"NTFILE6G5o78saDhUAHriB","market":"us","size":6502}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2021-05-13 00:00","pubTimestamp":1620835200,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"12734525","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000050-NGS","pdf_url":null,"pub_time":1620662400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"NGS","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000050/0001084991-21-000050-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000050/exhibitforfostercfoappoint.htm","primary":true,"translateUrl":null,"linkName":"exhibitforfostercfoappoint.htm","type":"EX-99.1","id":"NTFILEGEvAs6nbQfxDNgXB","market":"us","size":10030},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000050/ngs-20210511.htm","primary":false,"translateUrl":null,"linkName":"ngs-20210511.htm","type":"8-K","id":"NTFILE5M4LvTY6dvmYea7C","market":"us","size":37802}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2021-05-11 00:00","pubTimestamp":1620662400,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"12508138","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000043-NGS","pdf_url":null,"pub_time":1618416000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13D  - General statement of acquisition of beneficial ownership","symbol":"NGS","title":"SC 13D  - General statement of acquisition of beneficial ownership","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000043/0001084991-21-000043-index.htm","us_notice_code":"Form SC 13D","us_title_en":"SC 13D  - General statement of acquisition of beneficial ownership","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"SC 13D","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000043/a4_14x21schedule13dfilingf.htm","primary":true,"translateUrl":null,"linkName":"a4_14x21schedule13dfilingf.htm","type":"SC 13D","id":"NTFILEFJEMEdYMU5zk1srj","market":"us","size":48289}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-04-15 00:00","pubTimestamp":1618416000,"title_zh":"SC 13D  - General statement of acquisition of beneficial ownership","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"12465458","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000036-NGS","pdf_url":null,"pub_time":1617552000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"NGS","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000036/0001084991-21-000036-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000036/a4521pressrelease.htm","primary":true,"translateUrl":null,"linkName":"a4521pressrelease.htm","type":"EX-99.1","id":"NTFILEHYzRiVZqcX3d4Z8e","market":"us","size":13197},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000036/ngs-20210405.htm","primary":false,"translateUrl":null,"linkName":"ngs-20210405.htm","type":"8-K","id":"NTFILEttRnZxbDxRngteA7","market":"us","size":36151}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2021-04-05 00:00","pubTimestamp":1617552000,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"12443788","market":"us","labels":[],"media":"sec.gov","original_id":"AN108499121000026-NGS","pdf_url":null,"pub_time":1617120000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"NGS","title":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/0001084991-21-000026-index.htm","us_notice_code":"Form 10-K","us_title_en":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/ngs-20201231.htm","primary":true,"translateUrl":null,"linkName":"ngs-20201231.htm","type":"10-K","id":"NTFILE6FwrvxystvYhyr91","market":"us","size":1676222},{"description":"EX-21.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/a123120-ngsxex211subsidiar.htm","primary":false,"translateUrl":null,"linkName":"a123120-ngsxex211subsidiar.htm","type":"EX-21.1","id":"NTFILE4vqmfN8CHUPfgbaf","market":"us","size":3308},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/a123120-ex231bdoconsent.htm","primary":false,"translateUrl":null,"linkName":"a123120-ex231bdoconsent.htm","type":"EX-23.1","id":"NTFILE7nDpF3vKTpB9ywZD","market":"us","size":3290},{"description":"EX-23.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/a123120-ex232mossadamscons.htm","primary":false,"translateUrl":null,"linkName":"a123120-ex232mossadamscons.htm","type":"EX-23.2","id":"NTFILEveH563VnWcqSqHQS","market":"us","size":2848},{"description":"EX-31.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/a123120-ngsxex311taylor.htm","primary":false,"translateUrl":null,"linkName":"a123120-ngsxex311taylor.htm","type":"EX-31.1","id":"NTFILE4hPj2zGgTur2stx4","market":"us","size":13717},{"description":"EX-31.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/a123120-ngsxex312lawrence.htm","primary":false,"translateUrl":null,"linkName":"a123120-ngsxex312lawrence.htm","type":"EX-31.2","id":"NTFILEHTZw32TmFybuMWRd","market":"us","size":12164},{"description":"EX-32.1","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/a123120-ngsxex321taylor.htm","primary":false,"translateUrl":null,"linkName":"a123120-ngsxex321taylor.htm","type":"EX-32.1","id":"NTFILE8SJicC2q7sgteGLW","market":"us","size":9087},{"description":"EX-32.2","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/a123120-ngsxex322lawrence.htm","primary":false,"translateUrl":null,"linkName":"a123120-ngsxex322lawrence.htm","type":"EX-32.2","id":"NTFILE8rH8yx8UvMrZzVEx","market":"us","size":9097},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1084991/000108499121000026/ngs-20201231_g1.jpg","primary":false,"translateUrl":null,"linkName":"ngs-20201231_g1.jpg","type":"GRAPHIC","id":"NTFILECtazMnr72KzKiWNb","market":"us","size":90508}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2021-03-31 00:00","pubTimestamp":1617120000,"title_zh":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":13,"pageCount":8,"totalSize":241,"code":"91000000","status":"200"}]}}