Income Taxes - Significant Components of the Company's Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Components of Deferred Tax Assets and Liabilities [Abstract]
Net operating loss	$ 10,819	$ 6,354
R&D credit	1,381	1,681
Stock compensation	263	85
Accruals and other temporary differences	58
Gross deferred tax assets	12,521	8,120
Depreciation	(1)
Valuation allowance	(12,520)	(8,120)
Deferred tax assets, net of allowance	$ 0	$ 0