CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Class A Common Stock Common Stock.	Class A Common Stock	Class B Common Stock Common Stock.	Class B Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Total
Balance at Dec. 31, 2023	$ 80		$ 0		$ 72,593	$ 134,771	$ (36,895)	$ 170,549
Balance (in shares) at Dec. 31, 2023	8,007	8,007	0	0
Net income (loss)	$ 0		$ 0		0	(1,577)	0	(1,577)
Dividends declared per common share	0		0		0	(5,321)	0	(5,321)
Compensation expense related to restricted stock awards	0		0		453	0	0	453
401(k) plan contribution	0		0		(207)	0	475	268
Balance at Mar. 31, 2024	$ 80		$ 0		72,839	127,873	(36,420)	164,372
Balance (in shares) at Mar. 31, 2024	8,007		0
Balance at Dec. 31, 2023	$ 80		$ 0		72,593	134,771	(36,895)	170,549
Balance (in shares) at Dec. 31, 2023	8,007	8,007	0	0
Net income (loss)								924
Balance at Jun. 30, 2024	$ 80		$ 0		73,359	128,808	(36,420)	165,827
Balance (in shares) at Jun. 30, 2024	8,006		0
Balance at Dec. 31, 2023	$ 80		$ 0		72,593	134,771	(36,895)	170,549
Balance (in shares) at Dec. 31, 2023	8,007	8,007	0	0
Forfeiture of restricted stock (in shares)		(1)		0
Balance at Dec. 31, 2024	$ 82		$ 0		74,334	128,216	(36,710)	165,922	[1]
Balance (in shares) at Dec. 31, 2024	8,183	8,183	0	0
Balance at Mar. 31, 2024	$ 80		$ 0		72,839	127,873	(36,420)	164,372
Balance (in shares) at Mar. 31, 2024	8,007		0
Net income (loss)	$ 0		$ 0		0	2,501	0	2,501
Forfeiture of restricted stock	$ 0		$ 0		0	0	0	0
Forfeiture of restricted stock (in shares)	(1)		0
Dividends declared per common share	$ 0		$ 0		0	(1,566)	0	(1,566)
Compensation expense related to restricted stock awards	0		0		520	0	0	520
Balance at Jun. 30, 2024	$ 80		$ 0		73,359	128,808	(36,420)	165,827
Balance (in shares) at Jun. 30, 2024	8,006		0
Balance at Dec. 31, 2024	$ 82		$ 0		74,334	128,216	(36,710)	165,922	[1]
Balance (in shares) at Dec. 31, 2024	8,183	8,183	0	0
Net income (loss)	$ 0		$ 0		0	(1,575)	0	(1,575)
Dividends declared per common share	0		0		0	(1,604)	0	(1,604)
Compensation expense related to restricted stock awards	0		0		527	0	0	527
401(k) plan contribution	0		0		(717)	0	1,007	290
Balance at Mar. 31, 2025	$ 82		$ 0		74,144	125,037	(35,703)	163,560
Balance (in shares) at Mar. 31, 2025	8,183		0
Balance at Dec. 31, 2024	$ 82		$ 0		74,334	128,216	(36,710)	165,922	[1]
Balance (in shares) at Dec. 31, 2024	8,183	8,183	0	0
Net income (loss)								(447)
Forfeiture of restricted stock (in shares)		(1)		0
Balance at Jun. 30, 2025	$ 82		$ 0		74,747	124,554	(35,703)	163,680
Balance (in shares) at Jun. 30, 2025	8,182	8,182	0	0
Balance at Mar. 31, 2025	$ 82		$ 0		74,144	125,037	(35,703)	163,560
Balance (in shares) at Mar. 31, 2025	8,183		0
Net income (loss)	$ 0		$ 0		0	1,128	0	1,128
Forfeiture of restricted stock	$ 0		$ 0		0	0	0	0
Forfeiture of restricted stock (in shares)	(1)		0
Dividends declared per common share	$ 0		$ 0		0	(1,611)	0	(1,611)
Compensation expense related to restricted stock awards	0		0		603	0	0	603
Balance at Jun. 30, 2025	$ 82		$ 0		$ 74,747	$ 124,554	$ (35,703)	$ 163,680
Balance (in shares) at Jun. 30, 2025	8,182	8,182	0	0

[1] The balance sheet as December 31, 2024 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.