Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Net operating loss carryforward	$ 32,373	$ 11,333
Research tax credits	7,012	2,509
Accrued and other	1,980	543
Stock-based compensation	1,390	121
Total deferred tax assets	42,755	14,506
Less valuation allowance	(42,688)	(14,477)
Net deferred tax assets	67	29
Deferred tax liabilities:
Property and equipment	(67)	(29)
Total deferred tax liabilities	$ (67)	$ (29)