Leases - Lease termination (Details) - USD ($)	1 Months Ended
	Aug. 31, 2018	Mar. 31, 2020	Oct. 01, 2019	Sep. 30, 2019
Leases
Consideration for termination of lease	$ 5,800,000
Amount of execution of termination agreement	287,615
Payment for lease per month	$ 50,000
Terms of payment for lease	30 months
Lease payment in any event	$ 4,000,000
Security deposit	$ 174,250
Lease termination payments included in other liabilities on the consolidated balance sheets		$ 3,938,994	$ 3,909,448	$ 3,909,448