Condensed Consolidated Statements of Equity - USD ($) $ 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
Increase (Decrease) in Stockholders' Equity
Treasury stock, shares outstanding (in shares)				0
Beginning balance at Dec. 31, 2020	$ 246,410	$ (98,558)	$ (686)	$ 0	$ 319,642	$ 25,983	$ 26		$ 3
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2020							25,711,000		3,040,000
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							2,748,000		2,748,000
Exchange of LLC Interests held by LLC Owners	0		66		23,593	(23,659)	$ 3		$ (3)
Accrued tax distributions	(7)					(7)
Other comprehensive income	(208)		(205)			(3)
Stock based compensation expense	7,188				6,885	303
Exercise of options to purchase common stock (in shares)							533,000
Exercise of options to purchase common stock	12,617				12,617
Issuance of stock for vesting of RSU's, net of tax with holdings (in shares)							73,000
Issuance of stock vesting of RSU's, net of tax withholdings	(901)				(901)
Net loss	(1,908)	(1,843)				(65)
Ending balance at Sep. 30, 2021	263,191	(100,401)	(825)	0	361,836	2,552	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Sep. 30, 2021							29,065,000		292,000
Beginning balance at Dec. 31, 2020	$ 246,410	(98,558)	(686)	0	319,642	25,983	$ 26		$ 3
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2020							25,711,000		3,040,000
Increase (Decrease) in Stockholders' Equity
Exercise of options to purchase common stock (in shares)	583,000
Ending balance at Dec. 31, 2021	$ 255,220	(114,525)	(684)	$ 0	368,006	2,394	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Dec. 31, 2021							29,139,000	272,000	272,000
Increase (Decrease) in Stockholders' Equity
Treasury stock, shares outstanding (in shares)				0
Beginning balance at Jun. 30, 2021	269,624	(92,499)	(126)	$ 0	358,506	3,714	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Jun. 30, 2021							28,909,000		425,000
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							133,000		133,000
Exchange of LLC Interests held by LLC Owners	0		3		769	(772)			$ 0
Accrued tax distributions	1					1
Other comprehensive income	(712)		(702)			(10)
Stock based compensation expense	2,627				2,581	46
Exercise of options to purchase common stock (in shares)							2,000
Exercise of options to purchase common stock	29				29
Issuance of stock for vesting of RSU's, net of tax with holdings (in shares)							21,000
Issuance of stock vesting of RSU's, net of tax withholdings	(49)				(49)
Net loss	(8,328)	(7,902)				(426)
Ending balance at Sep. 30, 2021	$ 263,191	(100,401)	(825)	$ 0	361,836	2,552	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Sep. 30, 2021							29,065,000		292,000
Increase (Decrease) in Stockholders' Equity
Treasury stock, shares outstanding (in shares)				0
Treasury stock, shares outstanding (in shares)	0			0
Beginning balance at Dec. 31, 2021	$ 255,220	(114,525)	(684)	$ 0	368,006	2,394	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2021							29,139,000	272,000	272,000
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							20,000		20,000
Exchange of LLC Interests held by LLC Owners	0				192	(192)
Other comprehensive income	$ (2,475)		(2,454)			(21)
Treasury stock purchased (in shares)	373,408			373,000
Treasury stock purchased	$ (3,857)			$ (3,857)
Stock based compensation expense	$ 8,904				8,826	78
Exercise of options to purchase common stock (in shares)	2,000						2,000
Exercise of options to purchase common stock	$ 115				115
Issuance of stock for vesting of RSU's, net of tax with holdings (in shares)							158,000
Issuance of stock vesting of RSU's, net of tax withholdings	(862)				(862)
Net loss	(41,733)	(41,373)				(360)
Ending balance at Sep. 30, 2022	215,312	(155,898)	(3,138)	$ (3,857)	376,277	1,899	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Sep. 30, 2022							29,319,000	252,000	252,000
Increase (Decrease) in Stockholders' Equity
Treasury stock, shares outstanding (in shares)				0
Beginning balance at Jun. 30, 2022	267,441	(106,762)	(2,203)	$ 0	374,057	2,320	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Jun. 30, 2022							29,304,000		252,000
Increase (Decrease) in Stockholders' Equity
Other comprehensive income	(942)		(935)			(7)
Treasury stock purchased (in shares)				373,000
Treasury stock purchased	(3,857)			$ (3,857)
Stock based compensation expense	2,238				2,217	21
Issuance of stock for vesting of RSU's, net of tax with holdings (in shares)							15,000
Issuance of stock vesting of RSU's, net of tax withholdings	3				3
Net loss	(49,571)	(49,136)				(435)
Ending balance at Sep. 30, 2022	$ 215,312	$ (155,898)	$ (3,138)	$ (3,857)	$ 376,277	$ 1,899	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Sep. 30, 2022							29,319,000	252,000	252,000
Increase (Decrease) in Stockholders' Equity
Treasury stock, shares outstanding (in shares)	373,000			373,000