Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2021	6,257,000		668,000
Balance at Dec. 31, 2021	$ 31	$ 33,478	$ (10,082)	$ (9,550)	$ (1,634)	$ 12,243
Shares issued – vested (in shares)	36,000		0
Shares issued – vested	$ 0	0	$ 0	0	0	0
Tax withholding related to vested shares from employee stock plans	0	(36)	0	0	0	(36)
Stock-based compensation	0	417	0	0	0	417
Cash dividends ($0.07 per share)	0	0	0	(393)	0	(393)
Net loss	$ 0	0	$ 0	(299)	0	(299)
Exercise of stock options (in shares)	1,000		0
Exercise of stock options	$ 0	4	$ 0	0	0	4
Balance (in shares) at Jun. 30, 2022	6,294,000		668,000
Balance at Jun. 30, 2022	$ 31	33,863	$ (10,082)	(10,242)	(1,634)	11,936
Balance (in shares) at Mar. 31, 2022	6,259,000		668,000
Balance at Mar. 31, 2022	$ 31	33,657	$ (10,082)	(9,511)	(1,634)	12,461
Shares issued – vested (in shares)	34,000		0
Shares issued – vested	$ 0	0	$ 0	0	0	0
Tax withholding related to vested shares from employee stock plans	0	(36)	0	0	0	(36)
Stock-based compensation	0	238	0	0	0	238
Cash dividends ($0.07 per share)	0	0	0	(393)	0	(393)
Net loss	$ 0	0	$ 0	(338)	0	(338)
Exercise of stock options (in shares)	1,000		0
Exercise of stock options	$ 0	4	$ 0	0	0	4
Balance (in shares) at Jun. 30, 2022	6,294,000		668,000
Balance at Jun. 30, 2022	$ 31	33,863	$ (10,082)	(10,242)	(1,634)	11,936
Balance (in shares) at Dec. 31, 2022	6,349,000		668,000
Balance at Dec. 31, 2022	$ 32	34,275	$ (10,082)	(11,820)	(1,634)	10,771
Shares issued – vested (in shares)	62		0
Shares issued – vested	$ 0	(1)	$ 0	0	0	(1)
Tax withholding related to vested shares from employee stock plans	0	(54)	0	0	0	(54)
Stock-based compensation	0	320	0	0	0	320
Cash dividends ($0.07 per share)	0	0	0	(799)	0	(799)
Net loss	$ 0	0	$ 0	(1,110)		(1,110)
Balance (in shares) at Jun. 30, 2023	6,411,000		668,000
Balance at Jun. 30, 2023	$ 32	34,540	$ (10,082)	(13,729)	(1,634)	9,127
Balance (in shares) at Mar. 31, 2023	6,354,000		668,000
Balance at Mar. 31, 2023	$ 32	34,452	$ (10,082)	(12,602)	(1,634)	10,166
Shares issued – vested (in shares)	57,000		0
Shares issued – vested	$ 0	(1)	$ 0	0	0	(1)
Tax withholding related to vested shares from employee stock plans	0	(54)	0	0	0	(54)
Stock-based compensation	0	143	0	0	0	143
Cash dividends ($0.07 per share)	0	0	0	(401)	0	(401)
Net loss	$ 0	0	$ 0	(726)	0	(726)
Balance (in shares) at Jun. 30, 2023	6,411,000		668,000
Balance at Jun. 30, 2023	$ 32	$ 34,540	$ (10,082)	$ (13,729)	$ (1,634)	$ 9,127