Note 1 - Basis of Presentation (Details Textual) - USD ($)	Jun. 30, 2020	Oct. 01, 2019	Sep. 30, 2019
Operating Lease, Right-of-Use Asset	$ 2,710,073		$ 0
Operating Lease, Liability, Total	$ 2,972,219
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset		$ 2,400,000
Operating Lease, Liability, Total		$ 2,600,000

Present value of lessee's discounted obligation for lease payments from operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

Name:	us-gaap_OperatingLeaseLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant