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Note 6 - Leases (Details Textual) - USD ($)
1 Months Ended
Mar. 31, 2025
Jun. 30, 2025
Jul. 31, 2024
Jun. 30, 2024
May 31, 2023
Finance Lease, Liability   $ 0   $ 0  
Operating Lease, Right-of-Use Asset   1,061,000   829,000  
Operating Lease, Liability   $ 1,122,000   $ 1,289,000  
Principal Office Denver Colorado [Member]          
Lessee, Operating Lease, Renewal Term (Year)         5 years
Operating Lease, Undiscounted Minimum Monthly Payment         $ 15,500
Office Space in Berwyn, Pennsylvania [Member]          
Lessee, Operating Lease, Renewal Term (Year)       5 years  
Operating Lease, Right-of-Use Asset     $ 500,000    
Operating Lease, Liability     $ 500,000    
Lessee, Operating Lease, Discount Rate       12.30%  
Operating Lease, Undiscounted Minimum Monthly Payment       $ 13,000  
Oceanside California Warehouse [Member]          
Gain (Loss) on Termination of Lease $ 100,000