Note 13 - Leases (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Oct. 01, 2019	Sep. 30, 2019
Operating Lease, Right-of-Use Asset	$ 4,158,786		$ 4,158,786
Operating Lease, Liability, Total	5,034,433		5,034,433
Finance Lease, Right-of-Use Asset	1,462,865		1,462,865
Finance Lease, Liability, Total	1,183,203		1,183,203
Operating Lease, Impairment Loss	$ 660,242		660,242
Telco [Member]
Operating Lease, Impairment Loss			$ 700,000
Minimum [Member]
Lessee, Operating and Finance Lease, Remaining Lease Term (Year)			1 year
Maximum [Member]
Lessee, Operating and Finance Lease, Remaining Lease Term (Year)			10 years
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset					$ 4,700,000
Operating Lease, Liability, Total					4,700,000
Finance Lease, Right-of-Use Asset					600,000
Finance Lease, Liability, Total					$ 600,000