Condensed Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Total	Accumulated Deficit	Accumulated Other Comprehensive Loss	Class A Treasury Stock	Additional Paid-in Capital	Non-controlling Interest	Class A common stock Common Stock	Class B common stock	Class B common stock Common Stock
Beginning balance at Dec. 31, 2021	$ 255,220	$ (114,525)	$ (684)		$ 368,006	$ 2,394	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2021							29,139		272
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							20		(20)
Exchange of LLC Interests held by LLC Owners	0				192	(192)
Other comprehensive income	(1,533)		(1,519)			(14)
Stock based compensation expense	6,666				6,609	57
Exercise of options to purchase common stock (in shares)							2
Exercise of Options to purchase common stock	115				115
Issuance of stock vesting of RSU's, net of withholdings (in shares)							143
Issuance of stock vesting of RSU's, net of tax withholdings	(865)				(865)
Net income	7,838	7,763				75
Ending balance at Jun. 30, 2022	267,441	(106,762)	(2,203)		374,057	2,320	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Jun. 30, 2022							29,304		252
Beginning balance at Dec. 31, 2021	$ 255,220	(114,525)	(684)		368,006	2,394	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2021							29,139		272
Increase (Decrease) in Stockholders' Equity
Exercise of options to purchase common stock (in shares)	2
Ending balance at Dec. 31, 2022	$ 211,793	(162,733)	(2,224)	$ (3,857)	378,709	1,869	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Dec. 31, 2022							29,348	252	252
Ending treasury stock, shares outstanding (in shares) at Dec. 31, 2022	373			373
Beginning balance at Mar. 31, 2022	$ 261,159	(111,394)	(1,136)		371,398	2,262	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Mar. 31, 2022							29,272		252
Increase (Decrease) in Stockholders' Equity
Other comprehensive income	(1,077)		(1,067)			(10)
Stock based compensation expense	2,843				2,821	22
Exercise of options to purchase common stock (in shares)							0
Exercise of Options to purchase common stock	15				15
Issuance of stock vesting of RSU's, net of withholdings (in shares)							33
Issuance of stock vesting of RSU's, net of tax withholdings	(177)				(177)
Net income	4,678	4,632				46
Ending balance at Jun. 30, 2022	267,441	(106,762)	(2,203)		374,057	2,320	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Jun. 30, 2022							29,304		252
Beginning balance at Dec. 31, 2022	211,793	(162,733)	(2,224)	$ (3,857)	378,709	1,869	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2022							29,348	252	252
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							8		(8)
Exchange of LLC Interests held by LLC Owners	0				115	(115)
Other comprehensive income	236		234			2
Stock based compensation expense	5,208				5,165	44
Issuance of stock vesting of RSU's, net of withholdings (in shares)							195
Issuance of stock vesting of RSU's, net of tax withholdings	(969)				(969)
Net income	19,334	19,167				167
Ending balance at Jun. 30, 2023	$ 235,603	(143,566)	(1,990)	$ (3,857)	383,020	1,967	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Jun. 30, 2023							29,551	244	244
Ending treasury stock, shares outstanding (in shares) at Jun. 30, 2023	373			373
Beginning balance at Mar. 31, 2023	$ 223,149	(153,034)	(2,275)	$ (3,857)	380,429	1,857	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Mar. 31, 2023							29,499		244
Beginning treasury stock, shares outstanding (in shares) at Mar. 31, 2023				373
Increase (Decrease) in Stockholders' Equity
Other comprehensive income	287		285			2
Stock based compensation expense	2,743				2,720	23
Issuance of stock vesting of RSU's, net of withholdings (in shares)							52
Issuance of stock vesting of RSU's, net of tax withholdings	(129)				(129)
Net income	9,553	9,468				85
Ending balance at Jun. 30, 2023	$ 235,603	$ (143,566)	$ (1,990)	$ (3,857)	$ 383,020	$ 1,967	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Jun. 30, 2023							29,551	244	244
Ending treasury stock, shares outstanding (in shares) at Jun. 30, 2023	373			373