Income Taxes - Summary of Reconciliation of Effective Tax Rate and Federal Statutory Tax Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]    
Federal income taxes $ (6,579) $ (3,617)
State income taxes, net of federal benefit (2,013) (1,113)
Permanent items 4 (65)
Stock based compensation 512 226
Research and development credit carryforwards (1,099) (505)
Other, net (131)  
Change in valuation allowance $ 9,306 $ 5,074