LIQUIDITY AND GOING CONCERN (Details)	Jun. 05, 2020 USD ($)	Apr. 21, 2020 USD ($)	Feb. 28, 2020 USD ($)	Feb. 24, 2020 USD ($)	Sep. 30, 2019	May 06, 2019	Oct. 10, 2018 USD ($)	Feb. 14, 2020 installment	Jan. 17, 2020 USD ($) installment	Dec. 31, 2019 USD ($)	Oct. 31, 2019 USD ($)	Jul. 31, 2019 USD ($)	Jul. 26, 2019 USD ($)	Mar. 05, 2019 USD ($)	Mar. 04, 2019 USD ($)	Dec. 31, 2018 USD ($)
Line of Credit Facility [Line Items]
Long-term debt										$ 115,000,000						$ 157,804,000
Ratio of total debt to EBITDAX (not more than)							400.00%
Ratio of current assets to current liabilities (not less than)							100.00%
Revolving Credit Agreement, due October 2023
Line of Credit Facility [Line Items]
Line of credit facility, borrowing base							$ 95,000,000.0					$ 115,000,000.0	$ 115,000,000	$ 125,000,000	$ 108,000,000	108,000,000.0
Ratio of current assets to current liabilities (not less than)					85.00%		100.00%
Line of Credit | Revolving Credit Agreement, due October 2023
Line of Credit Facility [Line Items]
Long-term debt										$ 115,000,000	$ 115,000,000					$ 75,000,000
Option to effect repayment, in full, period after redetermination							30 days
Option to effect repayment, monthly installments, period after redetermination							6 months
Ratio of total debt to EBITDAX (not more than)						300.00%	400.00%
Ratio of current assets to current liabilities (not less than)							100.00%
Subsequent Event | Revolving Credit Agreement, due October 2023
Line of Credit Facility [Line Items]
Line of credit facility, borrowing base									$ 90,000,000
Borrowing base deficiency									$ 25,000,000
Covenant, borrowing base deficiency, number of equal monthly installments (in installments) | installment								2	4
Covenant, borrowing base deficiency, equal monthly installment, amount				$ 6,250,000
Subsequent Event | Line of Credit | Revolving Credit Agreement, due October 2023
Line of Credit Facility [Line Items]
Line of credit facility, borrowing base									$ 90,000,000.0
Borrowing base deficiency									$ 25,000,000
Installment payment		$ 7,750,000	$ 17,300,000
Forecast | Line of Credit | Revolving Credit Agreement, due October 2023
Line of Credit Facility [Line Items]
Borrowing base deficiency	$ 7,800,000
Installment payment	$ 7,750,000