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Note 8 - Leases (Details Textual) - USD ($)
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Other Assets [Member]    
Lessor, Cost, Contracts Asset $ 4,000 $ 9,000
Other Income [Member]    
Operating Lease, Lease Income 125,000 115,000
Continuing Operations [Member]    
Lease, Cost $ 123,000 $ 168,000