Revenue - Additional Information (Details) - USD ($)			3 Months Ended			9 Months Ended		12 Months Ended
	Mar. 31, 2022	Sep. 19, 2018	Mar. 31, 2021	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2021	Apr. 17, 2018
Deferred Revenue Arrangement [Line Items]
Revenue				$ 8,600,811	$ 20,493,679	$ 19,056,999	$ 30,368,530
Grants receivable									$ 7,400,000
Research and development arrangement september 19, 2018
Deferred Revenue Arrangement [Line Items]
Revenue						86,000
Plan | BARDA
Deferred Revenue Arrangement [Line Items]
Proceeds from funding agreement		$ 4,600,000
Forecast | BARDA
Deferred Revenue Arrangement [Line Items]
Proceeds from funding agreement								$ 3,000,000.0
Grant
Deferred Revenue Arrangement [Line Items]
Revenue						$ 558,000
Grant | Forecast
Deferred Revenue Arrangement [Line Items]
Revenue	$ 1,800,000		$ 5,600,000