Consolidated Statements of Equity - USD ($) $ in Thousands	Common Stock Class B Common Stock	Common Stock	Additional Paid-in Capital.	Retained Earnings	Class B Common Stock	Total
Balance at Dec. 31, 2022		$ 442	$ 168,711	$ 140,045		$ 309,198
Stock-based compensation		3	2,934			2,937
Adjustment to dividends previously declared				(354)		(354)
Shares surrendered for withholding taxes payable		(1)	(114)			(115)
Net income				25,257		25,257
Balance at Mar. 31, 2023		444	171,531	164,948		336,923
Balance at Dec. 31, 2023	$ 88	440	277,133	91,944		369,605
Stock-based compensation		4	4,698			4,702
Shares surrendered for withholding taxes payable		(1)	(1,869)			(1,870)
Cash dividends and dividend equivalents declared				(2,201)		(2,201)
Net income				2,032	$ 2,032	2,032
Balance at Mar. 31, 2024	$ 88	$ 443	$ 279,962	$ 91,775		$ 372,268