CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock Class A Common Stock	Additional paid-in Capital	Retained Earnings	Treasury Stock	Total
Balance at Dec. 31, 2020	$ 124	$ 55,987	$ 111,545		$ 167,656
Net income			13,437		13,437
Issuance of common stock		104			104
Cash dividends			(7,452)		(7,452)
Treasury stock:
Acquired				$ (755)	(755)
Retired		(755)		755
Balance at Sep. 30, 2021	124	55,336	117,530		172,990
Balance at Jun. 30, 2021	124	55,336	115,879		171,339
Net income			4,132		4,132
Cash dividends			(2,481)		(2,481)
Balance at Sep. 30, 2021	124	55,336	117,530		172,990
Balance at Dec. 31, 2021	124	54,780	118,184		173,088
Net income			16,110		16,110
Issuance of common stock		118			118
Cash dividends			(30,803)		(30,803)
Treasury stock:
Acquired				(1,744)	(1,744)
Retired	(1)	(1,743)		$ 1,744
Balance at Sep. 30, 2022	123	53,155	103,491		156,769
Balance at Jun. 30, 2022	123	53,155	123,155		176,433
Net income			4,950		4,950
Cash dividends			(24,614)		(24,614)
Balance at Sep. 30, 2022	$ 123	$ 53,155	$ 103,491		$ 156,769