Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jan. 01, 2021	May 31, 2020
Commitments And Contingencies [Line Items]
FDIC insured amount	$ 250,000		$ 250,000
Rent credit due to refund for operating expense adjustments			9,000
Rent expenses		$ 5,000	$ 0	$ 19,000
Operating lease revenue/expense	$ 9,000
Initial lease term	6 months		6 months
Research and Developments Expenses
Commitments And Contingencies [Line Items]
Remaining commitment cost incurred	$ 493,300
DHHS
Commitments And Contingencies [Line Items]
Minimum annual payment					$ 100,000	$ 20,000
DHHS | Minimum
Commitments And Contingencies [Line Items]
Royalty expenses	$ 25,000	$ 5,000	$ 75,000	$ 25,000