Property and Equipment, Net - Additional information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Sep. 30, 2019
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 63,775	$ 816,541	$ 127,551	$ 1,639,618
Finance leases, Right-of-use asset	$ 2,375,000		$ 2,375,000
Finance leases, Weighted-average discount rate (as a percent)	43.00%		43.00%
Finance lease accumulated amortization					$ 475,000
Impairment of property and equipment	$ 423,328	$ 561,735	$ 423,328	$ 2,911,138
Land and building
Property, Plant and Equipment [Line Items]
Finance leases, Right-of-use asset					$ 3,000,000
Finance leases, Weighted-average discount rate (as a percent)					43.90%