Subsequent Events	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENTSOn March 11, 2020, we entered into a Standstill and Amendment Agreement (Standstill Agreement) with the lenders and administrative agent party to the Unit credit agreement. The Standstill Agreement, among other things, provides that during the standstill period (as defined below), the administrative agent and lenders under the Unit credit agreement agree to temporarily standstill from making any final determination in connection with the pending scheduled redetermination of the borrowing base that was, under the Unit credit agreement, otherwise scheduled to be made on or about April 1, 2020, and from otherwise exercising certain of their respective rights and remedies under the Unit credit agreement. The standstill period will begin after the effective date of the Standstill Agreement and will continue until the earlier of: (i) the receipt by any credit party from the administrative agent of notice of the occurrence of any termination event and (ii) 3:00 p.m. central time on April 15, 2020. “Termination event” is defined under the Standstill Agreement to include the occurrence of any one or more of the following: (i) any representation or warranty made or deemed to have been made by any credit party under the Standstill Agreement being false, misleading or erroneous in any material respect when made or deemed to have been made, (ii) any credit party failing to perform, observe or comply with any covenant, agreement or term contained in the Standstill Agreement in any material respect or (iii) any default which is not cured within five (5) business days or event of default occurring under the Unit credit agreement. Under the Standstill Agreement, we are prevented from withdrawing more than an additional $15.0 million, in the aggregate, net of repayments, and we have agreed to make repayments using any excess cash, among certain other conditions.