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Supplemental Oil and Natural Gas Information (Unaudited) - Schedule of Oil and Natural Gas Producing Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Oil and Gas Exploration and Production Industries Disclosures [Abstract]
Oil and natural gas sales	$ 2,330	$ 6,573
Lease operating expense	(1,535)	(1,848)
Production taxes	(168)	(429)
Depletion and amortization	(356)	(671)
Impairment of oil and natural gas properties	(2,943)
Results of operations from oil and natural gas producing activities	$ (2,672)	$ 3,625

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Results of operations from oil and natural gas producing activities.

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The noncash expense charged against earnings to recognize the consumption of oil and gas reserves that are part of an entities' assets.

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The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

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Amount of operating lease expense. Excludes sublease income.

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A tax assessed on oil and gas production.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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