Income Taxes - Statutory Federal Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income taxes at statutory rate	21.00%	21.00%
State income tax	5.28%	6.81%
Permanent differences	(0.15%)	(0.12%)
Research & development credit	0.12%	2.35%
Return to provision	(0.63%)	0.00%
Valuation allowance	(22.37%)	(30.04%)
Other	(3.37%)	0.00%
Effective tax rate	(0.12%)	0.00%