Note 13 - Leases - Supplemental Cash Flow Information (Details) - USD ($)	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating cash flows from operating leases	$ 768,784
Operating cash flows from finance leases	43,182
Financing cash flows from finance leases	277,061
Right-of-use assets obtained in exchange for operating leases	1,076,700
Right-of-use assets obtained in exchange for finance leases	$ 718,058