Consolidated Statements of Equity - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2022	1,901,000
Balance at Dec. 31, 2022		$ 281	$ 7,555	$ 177,566	$ (45,049)	$ 140,353
Purchase of treasury stock (in shares)	(31,440)
Purchase of treasury stock		0	0	0	(2,748)	(2,748)
Net income		0	0	1,410	0	1,410
Balance (in shares) at Mar. 31, 2023	1,869,560
Balance at Mar. 31, 2023		281	7,555	178,976	(47,797)	139,015
Balance (in shares) at Dec. 31, 2023	1,820,100
Balance at Dec. 31, 2023		281	7,555	205,669	(52,555)	160,950
Purchase of treasury stock (in shares)	(29,855)
Purchase of treasury stock		0	0	0	(2,849)	(2,849)
Net income		0	0	11,319	0	11,319
Balance (in shares) at Mar. 31, 2024	1,790,245
Balance at Mar. 31, 2024		$ 281	$ 7,555	$ 216,988	$ (55,404)	$ 169,420