Acquisitions (Details Textual) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 11, 2018 USD ($) a wells	Feb. 01, 2018 USD ($) $ / shares shares	May 01, 2018 USD ($) a wells shares	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)
Class A Units [Member] | Old Ironsides [Member]
Business Acquisition [Line Items]
Aggregate share ownership prior to acquisition				72.76%	72.76%
Class A Units [Member] | Carbon Appalachia [Member]
Business Acquisition [Line Items]
Cash paid to acquired business					$ 33,000
Business acquisition, purchase price					58,200
Debt issued for acquired business					25,200
Seneca Acquisition [Member]
Business Acquisition [Line Items]
Cash paid to acquired business			$ 5,000
Business acquisition, purchase price			43,000
Debt issued for acquired business			$ 3,000
Number of oil wells acquired | wells			309
Number of acres land acquired gross | a			6,800
Number of acres land acquired net | a			6,600
Issuance shares of preferred stock | shares			50,000
Liberty Acquisition [Member]
Business Acquisition [Line Items]
Business acquisition, purchase price	$ 3,000
Number of oil wells acquired | wells	54
Number of acres land acquired gross | a	55,000
Number of acres land acquired net | a	22,000
Working interest percentage prior to acquisition	60.00%
Working interest ownership after acquisition	100.00%
Carbon California [Member]
Business Acquisition [Line Items]
Gain on derecognized equity investment					5,400
Percentage of acquisition		100.00%
Ownership prior to acquisition		38.59%
Fair value of consideration				$ 8,600
Exchanged common shares | shares		1,527,778
Exchanged common shares value		$ 8,300
Exchanged common shares per share | $ / shares		$ 5.45
Carbon California [Member] | Class A Units [Member]
Business Acquisition [Line Items]
Exchanged common shares | shares		11,000
Carbon Appalachia [Member]
Business Acquisition [Line Items]
Gain on derecognized equity investment					$ 1,300