Consolidated Statements of Equity - USD ($) $ in Thousands	Common Stock Class B Common Stock	Common Stock	Additional Paid-in Capital.	Retained Earnings (Deficit)	Class B Common Stock	Total
Balance at Dec. 31, 2021		$ 441	$ 163,566	$ 47,067		$ 211,074
Stock-based compensation		2	1,885			1,887
Cash dividends declared				(2,497)		(2,497)
Net income				41,471		41,471
Balance at Mar. 31, 2022		443	165,451	86,041		251,935
Balance at Dec. 31, 2021		441	163,566	47,067		211,074
Net income						74,751
Balance at Jun. 30, 2022		441	164,918	114,323		279,682
Balance at Mar. 31, 2022		443	165,451	86,041		251,935
Stock-based compensation			2,286			2,286
Cash dividends declared				(4,998)		(4,998)
Shares surrendered for withholding taxes payable		(2)	(2,819)			(2,821)
Net income				33,280		33,280
Balance at Jun. 30, 2022		441	164,918	114,323		279,682
Balance at Dec. 31, 2022		442	168,711	140,045		309,198
Stock-based compensation		3	2,934			2,937
Shares surrendered for withholding taxes payable		(1)	(114)			(115)
Adjustment to dividends previously declared				(354)		(354)
Net income				25,257		25,257
Balance at Mar. 31, 2023		444	171,531	164,948		336,923
Balance at Dec. 31, 2022		442	168,711	140,045		309,198
Net income						32,813
Balance at Jun. 30, 2023	$ 88	439	272,728	63,850		337,105
Balance at Mar. 31, 2023		444	171,531	164,948		336,923
Stock-based compensation			3,568			3,568
Cash dividends declared				(5,734)	$ 0	(5,734)
Stock dividend declared and distributed	89		102,831	(102,920)
Shares surrendered for withholding taxes payable	(1)	(5)	(5,202)			(5,208)
Net income				7,556		7,556
Balance at Jun. 30, 2023	$ 88	$ 439	$ 272,728	$ 63,850		$ 337,105