Income Taxes - Significant Components of Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Net operating loss carryforwards	$ 518	$ 9,706
Stock-based compensation	5,162	4,605
Capitalized research and development	1,528
Reserves	95	169
Intangible assets	35	56
Accrued legal settlement	1,355
Operating lease liabilities		556
Accrued compensation		399
Other accruals	1	71
Total gross deferred tax assets	8,694	15,562
Deferred tax liabilities:
Property and equipment		(348)
Operating lease right-of-use assets		(518)
Total gross deferred tax liabilities		(866)
Valuation allowance	$ (8,694)	$ (14,696)