Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Capital in Excess of Par	(Accumulated Deficit) Retained Earnings
Beginning Balance, Value at Dec. 31, 2021	$ 11,541	$ 1,273	$ 7,789	$ 2,479
Beginning Balance, Shares at Dec. 31, 2021	12,727	12,727
Stock-based compensation, Value	$ 35		35
Restricted stock unit vesting	28	$ 2	26
Restricted stock unit vesting, Shares		22
Net income (loss)	(451)			(451)
Ending Balance, Value at Mar. 31, 2022	11,153	$ 1,275	7,850	2,028
Ending Balance, Shares at Mar. 31, 2022		12,749
Beginning Balance, Value at Dec. 31, 2022	$ 2,820	$ 1,280	7,912	(6,372)
Beginning Balance, Shares at Dec. 31, 2022	12,797	12,797
Stock-based compensation, Value	$ 7		7
Net income (loss)	369			369
Ending Balance, Value at Mar. 31, 2023	$ 3,196	$ 1,280	$ 7,919	$ (6,003)
Ending Balance, Shares at Mar. 31, 2023	12,797	12,797