Income Tax - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax [Line Items]
Valuation allowance	$ 74,816,000	$ 49,507,000
Increase in valuation allowance	25,300,000
Net operating loss carryforwards	$ 198,200,000
Operating loss carryforwards, expiration	Dec. 31, 2034
Cumulative change in ownership period	3 years
Unrecognized tax benefits	$ 1,600,000
Accrual for interest or penalties	0
Interest and penalties not recognized	$ 0
Minimum
Income Tax [Line Items]
Cumulative change in ownership percentage	50.00%
Research tax credit carryforward
Income Tax [Line Items]
Tax credit carryforward	$ 3,900,000
Begin to expire in 2034
Income Tax [Line Items]
Net operating loss carryforwards	41,600,000
Not expire
Income Tax [Line Items]
Net operating loss carryforwards	156,600,000
Federal
Income Tax [Line Items]
Tax credit carryforward	6,100,000
CALIFORNIA
Income Tax [Line Items]
Net operating loss carryforwards	$ 197,300,000
Operating loss carryforwards, expiration	Dec. 31, 2034