CONSOLIDATED BALANCE SHEETS (Unaudited Consolidated Condensed) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 9	$ 9
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized	24,088	24,088
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized	55,000,000	55,000,000
Common stock, issued	38,221,292	38,221,292
Common stock, outstanding	38,221,292	38,221,292

Amount of allowance for credit loss on accounts receivable, classified as current.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Face amount or stated value per share of common stock.

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