CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE NONCONTROLLING INTEREST AND STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	At-The-Market Offering	Class A Common Stock	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class A Common Stock At-The-Market Offering	Common Stock Class B Common Stock	Additional Paid-In Capital	Additional Paid-In Capital At-The-Market Offering	Shares in Treasury	Accumulated Deficit	Accumulated Other Comprehensive Income
Increase (Decrease) in Temporary Equity [Roll Forward]
Net loss	$ 0
Beginning balance (in shares) at Dec. 31, 2022					976,908
Beginning balance at Dec. 31, 2022	7,233				$ 5			$ 220,422		$ (1,043)	$ (212,151)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(5,394)										(5,394)
Stock-based compensation	828							828
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units (in shares)					17,718
Ending balance (in shares) at Mar. 31, 2023					994,626
Ending balance at Mar. 31, 2023	2,667				$ 5			221,250		(1,043)	(217,545)
Beginning balance at Dec. 31, 2023	44,824
Increase (Decrease) in Temporary Equity [Roll Forward]
Net loss	(3,537)
Change in value of redeemable noncontrolling interest	326
Foreign currency translation adjustments	(3)
Ending balance at Mar. 31, 2024	41,610
Beginning balance (in shares) at Dec. 31, 2023			20,567,656	3,142,636	20,567,656		3,142,636
Beginning balance at Dec. 31, 2023	293,470				$ 8		$ 0	775,017		(1,785)	(479,778)	$ 8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(23,435)										(23,435)
Stock-based compensation	2,528							2,528
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units (in shares)					97,273
Issuance of common stock from the ATM facility, net of offering expenses (in shares)						356,477
Issuance of common stock from the ATM facility, net of offering expenses		$ 6,132							$ 6,132
Payment of taxes related to vested restricted stock units (in shares)					(6,436)
Payment of taxes related to vested restricted stock units	(127)									(127)
Change in value of redeemable noncontrolling interest	(326)							(326)
Foreign currency translation adjustments	$ (25)											(25)
Ending balance (in shares) at Mar. 31, 2024	24,157,606		21,014,970	3,142,636	21,014,970		3,142,636
Ending balance at Mar. 31, 2024	$ 278,217				$ 8		$ 0	$ 783,351		$ (1,912)	$ (503,213)	$ (17)