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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

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.

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-Publisher FASB
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-Topic 230
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OIL AND NATURAL GAS PROPERTIES (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2020	Sep. 30, 2019
Oil and Natural Gas Properties [Line Items]
Proceeds from sale of oil and natural gas assets			$ 608	$ 1,519
Acquisition costs			242	668
Impairment of assets			4,376	5,710
Oil and natural gas
Oil and Natural Gas Properties [Line Items]
Impairment of assets			$ 4,326	$ 5,710
Wood River and Twining
Oil and Natural Gas Properties [Line Items]
Acquisition costs		$ 355
Barnwell Industries Inc \| Progress
Oil and Natural Gas Properties [Line Items]
Proceeds from sale of oil and natural gas assets	$ 594