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, 2018	6,175		668
Balance at Dec. 31, 2018	$ 31	$ 31,523	$ (10,082)	$ (1,326)	$ (1,399)	$ 18,747
Shares issued – vested (in shares)	10
Shares issued – vested
Tax withholding from employee stock plans		(33)				(33)
Stock compensation expense		319				319
Cash dividends				(1,985)		(1,985)
Net income (loss)				1,395		1,395
Other comprehensive income (loss)					34	34
Balance (in shares) at Jun. 30, 2019	6,185		668
Balance at Jun. 30, 2019	$ 31	31,809	$ (10,082)	(1,916)	(1,365)	18,477
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
Shares issued – vested
Tax withholding from employee stock plans		(8)				(8)
Stock compensation expense		323				323
Cash dividends				(993)		(993)
Net income (loss)				(2,209)		(2,209)
Other comprehensive income (loss)					(9)	(9)
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