Income Taxes - Reconciliation of Effective Tax Rate to the Statutory Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Amount
Income tax expense (benefit) at federal statutory rate	$ 2,430	$ (10,264)
State income tax, net of federal benefit	140	(2,185)
Other permanent differences	1	1
Research and development tax credits	(393)	(551)
Other tax credits	(612)	291
Tax reserve reassessment	79	157
Change in valuation allowance	(497)	12,361
Return adjustment	(1,147)	(278)
Stock-based compensation	87	74
Other, net	216	(12)
Income tax expense (benefit)	$ 304	$ (406)
Percent
Income tax expense (benefit) at federal statutory rate	21.00%	21.00%
State income tax, net of federal benefit	1.20%	4.50%
Other permanent differences	0.00%	0.00%
Research and development tax credits	(3.40%)	1.10%
Other tax credits	(5.30%)	(0.60%)
Tax reserve reassessment	0.70%	(0.30%)
Change in valuation allowance	(4.30%)	(25.30%)
Return adjustment	(9.90%)	0.60%
Stock-based compensation	0.70%	(0.20%)
Other, net	1.90%	0.00%
Income tax expense (benefit)	2.60%	0.80%