Condensed Consolidated Statements of Changes In Stockholders’ Equity (Unaudited) - USD ($) $ in Thousands	Class A Common Stock	Redeemable Class C Convertible Preferred Units	Redeemable Class D Convertible Preferred Units	Total Preferred Interests Value	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive (Loss)	Class A Common Stock in Treasury	Total
Balance at Dec. 31, 2020	$ 2	$ 11,879	$ 357,725	$ 369,604		$ (490,284)	$ (96)		$ (490,378)
Balance (in Shares) at Dec. 31, 2020	7,345,733	5,365,566	42,286,068
Stock-based compensation expense					363				363
Issuance of common warrants					232				232
Change in redemption value			8,188	8,188	(595)	(7,593)			(8,188)
Net loss						(27,068)			(27,068)
Foreign currency translation adjustment							(1)		(1)
Balance at Mar. 31, 2021	$ 2	$ 11,879	$ 365,913	377,792		(524,945)	(97)		(525,040)
Balance (in Shares) at Mar. 31, 2021	7,345,733	5,365,566	42,286,068
Balance at Dec. 31, 2021	$ 11				747,928	(647,861)	(121)		99,957
Balance (in Shares) at Dec. 31, 2021	96,546,611
Impact from adoption of new accounting standards						(515)			(515)
Balance, January 1, 2022	$ 11				747,928	(648,376)	(121)		99,442
Balance, January 1, 2022 (in Shares)	96,546,611
Exercise of common stock options					26				26
Exercise of common stock options (in Shares)	7,325
Exercise of common warrants
Exercise of common warrants (in Shares)	10
Stock-based compensation expense					7,195				7,195
Net loss						(9,711)			(9,711)
Foreign currency translation adjustment							(13)		(13)
Common stock received for tax withholding								$ (1)	(1)
Common stock received for tax withholding (in Shares)								(173)
Balance at Mar. 31, 2022	$ 11				$ 755,149	$ (658,087)	$ (134)	$ (1)	$ 96,938
Balance (in Shares) at Mar. 31, 2022	96,553,946							(173)