Condensed Consolidated Statements of Stockholder's Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2020	$ 39,765	$ 53	$ 45,477	$ (5,185)	$ (580)
Balance (in shares) at Dec. 31, 2020		5,272,204
Net income	27			27
Stock-based compensation	78		78
Balance at Mar. 31, 2021	39,870	$ 53	45,555	(5,158)	(580)
Balance (in shares) at Mar. 31, 2021		5,272,204
Balance at Dec. 31, 2021	$ 54,743	$ 53	45,817	9,453	(580)
Balance (in shares) at Dec. 31, 2021	5,308,973	5,308,973
Net income	$ 169			169
Stock-based compensation	233		233
Stock-based compensation (in shares)		15,000
Balance at Mar. 31, 2022	$ 55,145	$ 53	$ 46,050	$ 9,622	$ (580)
Balance (in shares) at Mar. 31, 2022	5,323,973	5,323,973