Condensed Consolidated Statements Of Changes In Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member] Class A Common Stock [Member]	Common Stock [Member] Class B Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated (Deficit) Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Noncontrolling Interests [Member]	Total
Beginning balance at Dec. 31, 2020	$ 156	$ 37	$ 310,588	$ (3,457)	$ 1,830	$ 99	$ 309,253
Beginning balance, shares at Dec. 31, 2020	15,624	3,694
Net income				2,345		110	2,455
Other comprehensive income					112		112
Purchase and retirement of common stock, value	$ (3)		(2,133)				(2,136)
Purchase and retirement of common stock, shares	(339)
Ending balance at Mar. 31, 2021	$ 153	$ 37	308,455	(1,112)	1,942	209	309,684
Ending balance, shares at Mar. 31, 2021	15,285	3,694
Beginning balance at Dec. 31, 2021	$ 118	$ 37	310,588	9,226	1,836	1,143	322,948
Beginning balance, shares at Dec. 31, 2021	11,804	3,671
Net loss excluding loss attributable to redeemable noncontrolling interest				(1,816)		(39)	(1,855)
Net income							(1,926)
Other comprehensive income					118		118
Accretion of noncontrolling interest				(53)			(53)
Contributions from noncontrolling interest						25	25
Distributions to noncontrolling interests						(231)	(231)
Conversion of common stock from Class B to Class A, shares	4	(4)
Share-based compensation			756				756
Ending balance at Mar. 31, 2022	$ 118	$ 37	$ 311,344	$ 7,357	$ 1,954	$ 898	$ 321,708
Ending balance, shares at Mar. 31, 2022	11,808	3,667