Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Balance at beginning of year	$ 377,000
Increases to prior positions		$ 141,000
Increases for current year positions	333,000	236,000
Balance at end of year	$ 710,000	$ 377,000