Note 10 - Borrowings (Details Textual)	12 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Apr. 12, 2020 USD ($)
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,000,000
Gain (Loss) on Extinguishment of Debt, Total	$ 0	$ 444,000
Maximum [Member]
Entity Number of Employees	25
SBA CARES Act Paycheck Protection Program [Member]
Debt Instrument, Face Amount			$ 442,000
Unsecured Debt, Total	$ 0	0
Gain (Loss) on Extinguishment of Debt, Total		$ 444,000