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			9,305		9,305
Issuance of common stock		104			104
Cash dividends			(4,971)		(4,971)
Treasury stock:
Acquired				$ (755)	(755)
Retired		(755)		755
Balance at Jun. 30, 2021	124	55,336	115,879		171,339
Balance at Mar. 31, 2021	124	55,232	113,740		169,096
Net income			4,620		4,620
Issuance of common stock		104			104
Cash dividends			(2,481)		(2,481)
Balance at Jun. 30, 2021	124	55,336	115,879		171,339
Balance at Dec. 31, 2021	124	54,780	118,184		173,088
Net income			11,160		11,160
Issuance of common stock		118			118
Cash dividends			(6,189)		(6,189)
Treasury stock:
Acquired				(1,744)	(1,744)
Retired	(1)	(1,743)		1,744
Balance at Jun. 30, 2022	123	53,155	123,155		176,433
Balance at Mar. 31, 2022	124	54,780	120,073		174,977
Net income			6,176		6,176
Issuance of common stock		118			118
Cash dividends			(3,094)		(3,094)
Treasury stock:
Acquired				(1,744)	(1,744)
Retired	(1)	(1,743)		$ 1,744
Balance at Jun. 30, 2022	$ 123	$ 53,155	$ 123,155		$ 176,433