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Note 6 - Leases (Details Textual) - USD ($)
Sep. 30, 2024
Jun. 30, 2024
Finance Lease, Liability $ 0  
Operating Lease, Right-of-Use Asset 1,225,000 $ 829,000
Operating Lease, Liability 1,628,000 $ 1,289,000
Office Space in Berwyn, Pennsylvania [Member]    
Operating Lease, Undiscounted Minimum Monthly Payment 13,000  
Operating Lease, Right-of-Use Asset 500,000  
Operating Lease, Liability $ 500,000  
Lessee, Operating Lease, Discount Rate 12.30%