Unaudited Condensed Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Class B Common Stock	Common Stock	Additional Paid-In Capital	Accumulate Deficit
Beginning balance at Dec. 31, 2020	$ 209,974		$ 3	$ 300,888	$ (90,917)
Beginning balance, share at Dec. 31, 2020		1,492,059	32,171,560
Stock-based compensation expense	4,643			4,643
Net loss	(18,701)				(18,701)
Ending balance at Mar. 31, 2021	195,916		$ 3	305,531	(109,618)
Ending balance, share at Mar. 31, 2021		1,492,059	32,171,560
Beginning balance at Dec. 31, 2021	210,821		$ 4	397,136	(186,319)
Beginning balance, share at Dec. 31, 2021		1,492,059	35,799,233
Stock-based compensation expense	3,632			3,632
Issuance of common stock under equity incentive plans, share			92,051
Taxes related to net share settlement of equity awards	(146)			(146)
Net loss	(24,254)				(24,254)
Ending balance at Mar. 31, 2022	$ 190,053		$ 4	$ 400,622	$ (210,573)
Ending balance, share at Mar. 31, 2022		1,492,059	35,891,284