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Convertible Subordinated Notes (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 24, 2018	Mar. 19, 2014
Debt Instrument [Line Items]
Effect of dilutive securities, Convertible junior subordinated debentures (in shares)	0	0
Carrying Values of Liability and Equity Components, Convertible Subordinated Notes
Amortization of Debt Issuance Costs	$ 200,000	$ 94,000
Accumulated Amortization, Debt Issuance Costs	$ 464,000		$ 337,000
Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Discount Rate	11.40%	11.40%
Debt Instrument, Unamortized Debt Issuance Costs	3.20%	3.20%
Stated interest rate percentage					2.75%
Carrying Values of Liability and Equity Components, Convertible Subordinated Notes
Convertible subordinated notes, principal amount			6,318,837
Unamortized discount of liability component	$ (254,000)		(319,000)
Debt issuance costs	(23,000)		(29,000)
Carrying value of the liability component	6,042,000		5,971,000	$ 6,319,000
Carrying value of the equity component	789,000		789,000
Convertible subordinated notes, fair value	6,400,000
Contractual coupon interest expense	43,000	$ 44,000
Accretion of discount, convertible subordinated notes	65,000	$ 57,000
Amortization of Debt Issuance Costs	6,000
Accumulated Amortization, Debt Issuance Costs	$ 136,000		$ 130,000

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Amount of accretion of discount for the standardized measure of discounted future net cash flow related to proved oil and gas reserves.

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Contractual interest rate for funds borrowed, under the debt agreement.

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