Subsequent Events - Settlement Agreement and Release - Additional Information (Details) - USD ($)	Mar. 12, 2021	Sep. 30, 2019	Jul. 20, 2018
Secured Convertible Promissory Notes [Member]
Subsequent Event [Line Items]
Warrants, exercise price		$ 2.50
DTII Note [Member] | Settlement Agreement And Release [Member] | Secured Convertible Promissory Notes [Member]
Subsequent Event [Line Items]
Principal amount			$ 3,000,000
DTII Note [Member] | Forecast [Member] | Settlement Agreement And Release [Member]
Subsequent Event [Line Items]
Warrants, exercise price	$ 2.50
DTII Note [Member] | Forecast [Member] | Settlement Agreement And Release [Member] | Midwest Bank [Member]
Subsequent Event [Line Items]
Notes payable in cash	$ 500,000
Warrants, exercise price	$ 0.01
DTII Note [Member] | Forecast [Member] | Settlement Agreement And Release [Member] | Maximum [Member]
Subsequent Event [Line Items]
Warrants to purchase shares of common stock	1,200,000
DTII Note [Member] | Forecast [Member] | Settlement Agreement And Release [Member] | Maximum [Member] | Midwest Bank [Member]
Subsequent Event [Line Items]
Warrants to purchase shares of common stock	1,250,000
DTII Note [Member] | Forecast [Member] | Settlement Agreement And Release [Member] | Warrant Exercise Price of 2.50 Per Share [Member]
Subsequent Event [Line Items]
Warrants, exercise price	$ 2.50
DTII Note [Member] | Forecast [Member] | Settlement Agreement And Release [Member] | Warrant Exercise Price of 2.50 Per Share [Member] | Maximum [Member]
Subsequent Event [Line Items]
Warrants to purchase shares of common stock	950,000
DTII Note [Member] | Forecast [Member] | Settlement Agreement And Release [Member] | Warrant Exercise Price of 0.01 Per Share [Member]
Subsequent Event [Line Items]
Warrants, exercise price	$ 0.01
DTII Note [Member] | Forecast [Member] | Settlement Agreement And Release [Member] | Warrant Exercise Price of 0.01 Per Share [Member] | Maximum [Member]
Subsequent Event [Line Items]
Warrants to purchase shares of common stock	250,000