Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
BALANCE (in shares) at Dec. 31, 2021	19,859,650	(273,937)
BALANCE at Dec. 31, 2021	$ 20	$ (1,842)	$ 395,372	$ (339,416)	$ 54,134
Stock issued for restricted stock (in shares)	480,595	0
Stock issued for restricted stock	$ 0	$ 0	0	0	0
Stock issued under defined contribution 401(k) retirement savings plan (in shares)	146,790	0
Stock issued under defined contribution 401(k) retirement savings plan	$ 0	$ 0	282	0	282
Share-based compensation	$ 0	$ 0	192	0	192
Shares withheld for taxes in connection with issuance of restricted stock (in shares)	(194,962)	0
Shares withheld for taxes in connection with issuance of restricted stock	$ 0	$ 0	(411)	0	(411)
Net income (loss)	$ 0	$ 0	0	(2,404)	(2,404)
BALANCE (in shares) at Mar. 31, 2022	20,292,073	(273,937)
BALANCE at Mar. 31, 2022	$ 20	$ (1,842)	395,435	(341,820)	51,793
BALANCE (in shares) at Dec. 31, 2021	19,859,650	(273,937)
BALANCE at Dec. 31, 2021	$ 20	$ (1,842)	395,372	(339,416)	54,134
Net income (loss)					769
BALANCE (in shares) at Dec. 31, 2022	21,127,130	(273,937)
BALANCE at Dec. 31, 2022	$ 21	$ (1,842)	397,240	(349,146)	46,273
Stock issued under defined contribution 401(k) retirement savings plan (in shares)	64,807	0
Stock issued under defined contribution 401(k) retirement savings plan	$ 0	$ 0	302	0	302
Share-based compensation	0	0	178	0	$ 178
Shares withheld for taxes in connection with issuance of restricted stock (in shares)					0
Net income (loss)	$ 0	$ 0	0	769	$ 769
BALANCE (in shares) at Mar. 31, 2023	21,191,937	(273,937)
BALANCE at Mar. 31, 2023	$ 21	$ (1,842)	$ 397,720	$ (348,377)	$ 47,522