Revenue - Additional Information (Details) - USD ($)		3 Months Ended		12 Months Ended	47 Months Ended
	Sep. 19, 2018	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2021	Mar. 31, 2022	Apr. 17, 2018
Deferred Revenue Arrangement [Line Items]
Revenue		$ 4,333,500	$ 4,198,500
Grants receivable						$ 7,400,000
Research and development arrangement september 19, 2018
Deferred Revenue Arrangement [Line Items]
Revenue		1,400,000
Plan | BARDA
Deferred Revenue Arrangement [Line Items]
Proceeds from funding agreement	$ 8,100,000
Forecast | BARDA
Deferred Revenue Arrangement [Line Items]
Proceeds from funding agreement				$ 6,500,000
Grant
Deferred Revenue Arrangement [Line Items]
Revenue		$ 682,000
Grant | Forecast
Deferred Revenue Arrangement [Line Items]
Revenue					$ 7,400,000