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, 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
Beginning Balance, Value at Dec. 31, 2023	$ 3,265	$ 1,301	7,956	(5,992)
Beginning Balance, Shares at Dec. 31, 2023	13,006	13,006
Stock-based compensation, Value	$ 5		5
Net income (loss)	(492)			(492)
Ending Balance, Value at Mar. 31, 2024	$ 2,778	$ 1,301	$ 7,961	$ (6,484)
Ending Balance, Shares at Mar. 31, 2024	13,006	13,006