v3.26.1
Note 6 - Customer and Vendor Concentrations (Details Textual)
3 Months Ended 9 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2025
Mar. 31, 2026
USD ($)
Mar. 31, 2025
Jun. 30, 2025
USD ($)
Accounts Receivable, after Allowance for Credit Loss, Current $ 1,626,000   $ 1,626,000   $ 1,464,000
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member]          
Number of Major Customers 0 1 1 0  
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | Customer One [Member]          
Concentration Risk, Percentage   12.00% 10.00%    
Accounts Receivable [Member] | Customer Concentration Risk [Member]          
Number of Major Customers     2    
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]          
Concentration Risk, Percentage     28.00%    
Accounts Receivable, after Allowance for Credit Loss, Current $ 615,000   $ 615,000    
Purchases [Member] | Supplier Concentration Risk [Member]          
Number of Major Vendors 1 2 3 2  
Purchases [Member] | Supplier Concentration Risk [Member] | One Vendor [Member]          
Concentration Risk, Percentage 16.00%        
Purchases [Member] | Supplier Concentration Risk [Member] | Vendor One [Member]          
Concentration Risk, Percentage   24.00% 15.00% 18.00%  
Purchases [Member] | Supplier Concentration Risk [Member] | Vendor Two [Member]          
Concentration Risk, Percentage   20.00% 12.00% 15.00%  
Purchases [Member] | Supplier Concentration Risk [Member] | Vendor Three [Member]          
Concentration Risk, Percentage     11.00%