Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2020					17,961,734	2,416,253
Beginning balance at Dec. 31, 2020	$ 397,591				$ 0	$ 0	$ (2,414)	$ 337,042	$ 62,963
Treasury Stock, Beginning balance (in shares) at Dec. 31, 2020							174,222
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	17,278								17,278
Shares returned in lieu of tax payments (in shares)							56,088
Shares returned in lieu of tax payments	(563)						$ (563)
Conversion of Class B Common Stock (in shares)					451,489	(451,489)
Issuance of common stock (in shares)					145,496
Stock-based compensation expense	5,191							5,191
Ending balance (in shares) at Dec. 31, 2021		18,558,719	1,964,764		18,558,719	1,964,764
Ending balance at Dec. 31, 2021	$ 419,497				$ 0	$ 0	$ (2,977)	342,233	80,241
Treasury Stock, Ending balance (in shares) at Dec. 31, 2021	230,310						230,310
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 16,235								16,235
Shares returned in lieu of tax payments (in shares)							156,650
Shares returned in lieu of tax payments	$ (1,700)						$ (1,700)
Conversion of Class B Common Stock (in shares)					1,652,723	(1,652,723)
Issuance of common stock (in shares)	254,347
Stock-based compensation expense	$ 6,229							6,229
Treasury stock purchased under share repurchase program (in shares)				(2,540,779)			2,540,779
Treasury stock purchased under share repurchase program	$ (31,856)						$ (31,856)
Ending balance (in shares) at Dec. 31, 2022	18,237,051	17,925,010	312,041		17,925,010	312,041
Ending balance at Dec. 31, 2022	$ 408,405				$ 0	$ 0	$ (36,533)	$ 348,462	$ 96,476
Treasury Stock, Ending balance (in shares) at Dec. 31, 2022	2,927,739						2,927,739