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, 2021	$ 68		$ 9		$ 70,035	$ 164,246	$ (37,439)	$ 196,919
Balance, shares at Dec. 31, 2021	6,835	6,835	965	965
Net income	$ 0		$ 0		0	1,204	0	1,204
Dividends declared per common share	0		0		0	(968)	0	(968)
Compensation expense related to restricted stock awards	0		0		339	0	0	339
401(k) plan contribution	0		0		(229)	0	477	248
Balance at Mar. 31, 2022	$ 68		$ 9		70,145	164,482	(36,962)	197,742
Balance, shares at Mar. 31, 2022	6,835		965
Balance at Dec. 31, 2022	$ 78		$ 0		71,664	143,896	(37,109)	178,529	[1]
Balance, shares at Dec. 31, 2022	7,867	7,867	0	0
Net income	$ 0		$ 0		0	920	0	920
Dividends declared per common share	0		0		0	(1,531)	0	(1,531)
Compensation expense related to restricted stock awards	0		0		245	0	0	245
401(k) plan contribution	0		0		(185)	0	441	256
Balance at Mar. 31, 2023	$ 78		$ 0		$ 71,724	$ 143,285	$ (36,668)	$ 178,419
Balance, shares at Mar. 31, 2023	7,867	7,867	0	0

[1] The balance sheet at December 31, 2022 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.