Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2021	5,308,973
Balance at Dec. 31, 2021	$ 53	$ 45,817	$ 9,453	$ (580)	$ 54,743
Net income	$ 0	0	169	0	169
Stock-based compensation (in shares)	0
Stock-based compensation	$ 0	233	0	0	233
Balance (in shares) at Mar. 31, 2022	5,308,973
Balance at Mar. 31, 2022	$ 53	46,050	9,622	(580)	55,145
Balance (in shares) at Dec. 31, 2022	5,349,187
Balance at Dec. 31, 2022	$ 53	46,346	(7,329)	(580)	38,490
Net income	$ 0	0	157	0	157
Stock-based compensation (in shares)	3,750
Stock-based compensation	$ 0	0	0	0	0
Balance (in shares) at Mar. 31, 2023	5,352,937
Balance at Mar. 31, 2023	$ 53	$ 46,346	$ (7,172)	$ (580)	$ 38,647