Condensed Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Class A Common Stock [Member]	Class B Common Stock [Member]	Common Stock [Member] Class A Common Stock [Member]	Common Stock [Member] Class B Common Stock [Member]	Preferred Stock [Member]	Preferred Stock [Member] Series Seed Stock [Member]	Preferred Stock [Member] Series Seed-1 Stock [Member]	Preferred Stock [Member] Series Seed-2 Stock [Member]	Preferred Stock [Member] Series A-1 Stock [Member]	Preferred Stock [Member] Series A-2 Stock [Member]	Preferred Stock [Member] Series A Preferred Stock [Member]	Preferred Stock [Member] Series A Preferred Stock [Member] SAFEs [Member]	Preferred Stock [Member] Series A Preferred Stock [Member] Warrants [Member]	Preferred Stock [Member] Series A Preferred Stock [Member] Convertible Debt [Member]	Preferred Stock [Member] Series A Preferred Stock [Member] Notes Payable, Related Parties [Member]	Preferred Stock [Member] Series B Preferred Stock [Member]	Treasury Stock [Member]	Additional Paid In Capital [Member]	Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2020	$ (87,375)			$ 272		$ 62,475	$ 10,383	$ 20,903	$ 11,315	$ 4,640	$ 15,234	$ 0					$ 0	$ (23)	$ 4,682	$ (92,306)
Beginning balance, common shares at Dec. 31, 2020				60,360,523	10,999,149													3,169,093
Beginning balance, preferred shares at Dec. 31, 2020							7,831,528	22,876,457	14,615,399	1,871,511	6,307,690	0					0
Issuance of common stock upon exercise of stock options, shares				9,785
Issuance of common stock upon exercise of stock options	4																		4
Issuance of stock, shares				485,836													5,441,863
Issuance of stock	103																$ 43,480		103
Exhange of preferred stock, shares							(7,831,528)	(22,876,457)	(14,615,399)	(1,871,511)	(6,307,690)	53,502,585
Exchange of preferred stock							$ (10,383)	$ (20,903)	$ (11,315)	$ (4,640)	$ (15,234)	$ 62,475
Conversion of stock, shares													4,539,060	134,106	3,624,114	423,230
Conversion of stock													$ 35,600	$ 614	$ 27,545	$ 2,205
Vesting of restricted stock, shares				15,405
Retirement of treasury stock in merger, shares				(3,169,093)														3,169,093
Retirement of treasury stock in merger																		$ 23	(23)
Stock-based compensation expense	3,440																		3,440
Net loss	(32,021)																			(32,021)
Ending balance at Mar. 31, 2021	(115,849)			$ 272		$ 171,919	$ 0	$ 0	$ 0	$ 0	$ 0	$ 128,439					$ 43,480	$ 0	8,206	(124,327)
Ending balance, common shares at Mar. 31, 2021				57,702,456	10,999,149
Ending balance, preferred shares at Mar. 31, 2021							0	0	0	0	0	62,223,095					5,441,863
Ending balance, treasury shares at Mar. 31, 2021																		0
Beginning balance at Dec. 31, 2021	$ 128,619			$ 278															357,822	(229,481)
Beginning balance, common shares at Dec. 31, 2021		111,518,094	13,874,132	111,518,094	13,874,132
Issuance of common stock upon exercise of stock options, shares	842,938			448,998
Issuance of common stock upon exercise of stock options	$ 121																		121
Stock-based compensation expense	2,178																		2,178
Net loss	(18,263)																			(18,263)
Ending balance at Mar. 31, 2022	$ 112,655			$ 278															$ 360,121	$ (247,744)
Ending balance, common shares at Mar. 31, 2022		111,967,092	13,874,132	111,967,092	13,874,132