Note 3 - Accounting Standards Adopted in Fiscal 2020 (Details Textual)	Jun. 30, 2020 USD ($)
Operating Lease, Right-of-Use Asset	$ 244,000
Office Lease Obligations Beyond One Year	18,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset	244,000
Operating Lease, Liability, Total	$ 244,000