Divestiture (Details Textuals) - USD ($)		6 Months Ended
Mar. 04, 2020	Jun. 30, 2020	Jun. 30, 2019
Business Combinations [Abstract]
Net proceeds from sale of oil and natural gas properties	$ 40,000,000	$ 40,971,000	$ 431,000
Gain (loss) on disposition of oil and gas properties	$ 0

The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

Name:	us-gaap_ProceedsFromSaleOfOilAndGasPropertyAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration