Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2019	6,185		668
Balance at Dec. 31, 2019	$ 31	$ 32,249	$ (10,082)	$ (3,754)	$ (1,624)	$ 16,820
Shares issued – vested (in shares)	10
Stock compensation expense		449				449
Repurchase of common stock at cost for employee tax withholding		(8)				(8)
Net income (loss)				(3,316)		(3,316)
Balance (in shares) at Sep. 30, 2020	6,195		668
Balance at Sep. 30, 2020	$ 31	32,690	$ (10,082)	(8,063)	(1,634)	12,942
Other comprehensive loss					(10)	(10)
Cash dividends ($0.18 per share)				(993)		(993)
Balance (in shares) at Jun. 30, 2020	6,195		668
Balance at Jun. 30, 2020	$ 31	32,564	$ (10,082)	(6,956)	(1,633)	13,924
Stock compensation expense		126				126
Net income (loss)				(1,107)		(1,107)
Balance (in shares) at Sep. 30, 2020	6,195		668
Balance at Sep. 30, 2020	$ 31	32,690	$ (10,082)	(8,063)	(1,634)	12,942
Other comprehensive loss					(1)	(1)
Balance (in shares) at Dec. 31, 2020	6,205		668
Balance at Dec. 31, 2020	$ 31	32,803	$ (10,082)	(8,606)	(1,634)	12,512
Shares issued – vested (in shares)	5
Stock compensation expense		564				564
Repurchase of common stock at cost for employee tax withholding		(5)				(5)
Net income (loss)				956		956
Balance (in shares) at Sep. 30, 2021	6,210		668
Balance at Sep. 30, 2021	$ 31	33,362	$ (10,082)	(7,650)	(1,634)	14,027
Balance (in shares) at Jun. 30, 2021	6,209		668
Balance at Jun. 30, 2021	$ 31	33,189	$ (10,082)	(8,389)	(1,634)	13,115
Shares issued – vested (in shares)	1
Stock compensation expense		178				178
Repurchase of common stock at cost for employee tax withholding		(5)				(5)
Net income (loss)				739		739
Balance (in shares) at Sep. 30, 2021	6,210		668
Balance at Sep. 30, 2021	$ 31	$ 33,362	$ (10,082)	$ (7,650)	$ (1,634)	$ 14,027