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RESTATEMENT OF PREVIOUSLY FILED FINANCIAL INFORMATION - ACQUISITIONS - Additional information (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 09, 2019 USD ($) a shares | Dec. 31, 2018 USD ($) a | Mar. 31, 2019 USD ($) | Jun. 30, 2019 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Feb. 25, 2019 USD ($) $ / shares
Business Acquisition [Line Items] |  |  |  |  |  |  |
Gas and Oil Area, Developed, Net | 38,230 | 4,788 |  |  |  |  |
Gas and Oil Area, Developed, Gross | 49,754 | 4,854 |  |  |  |  |
Business Combination, Acquisition Related Costs | $ |  | $ 23,321 | $ 3,500,000 | $ 4,100,000 | $ 4,100,000 | $ 4,100,000 |
Revolving Credit Facility |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  |  | $ 15,000,000
Wishbone Acquisition |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Gas and Oil Area, Developed, Net | 38,230 |  |  |  |  |  |
Gas and Oil Area, Developed, Gross | 49,754 |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares, Adjust | shares | 4,581,001 |  |  |  |  |  |
Business Acquisition, Share Price | $ / shares |  |  |  |  |  |  | $ 6.19
Payments to Acquire Businesses, Gross | $ | $ 264,100,000 |  |  |  |  |  |
Common Stock Held in Escrow | shares | 2,538,071 |  |  |  |  |  |
Average Working Interest |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 77.00% | 100.00% |  |  |  |  |
Average Net Revenue Interest |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 58.00% | 75.00% |  |  |  |  |

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- Definition Area assigned to productive oil and gas wells with working interest ownership. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1208 -Paragraph (a) + Details
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