v3.25.4
Note 5 - Concentrations (Details Textual)
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Mar. 31, 2025
Revenue from Contract with Customer, Including Assessed Tax $ 803,088 $ 749,510 $ 2,664,261 $ 2,447,391  
Revenue Benchmark [Member] | Customer Concentration Risk [Member]          
Concentration Risk, Number of Customers 2 2 2 2  
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Two Customers [Member]          
Concentration Risk, Percentage 44.00% 54.00% 43.00% 48.00%  
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Foreign Customers [Member]          
Concentration Risk, Percentage 13.00% 9.00% 14.00% 12.00%  
Revenue from Contract with Customer, Including Assessed Tax $ 106,533 $ 68,802 $ 385,970 $ 282,984  
Accounts Receivable [Member] | Customer Concentration Risk [Member]          
Concentration Risk, Number of Customers     2 3 4
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]          
Concentration Risk, Percentage     61.00%    
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Four Customers [Member]          
Concentration Risk, Percentage         89.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Three Customers [Member]          
Concentration Risk, Percentage       88.00%  
Accounts Payable Balance [Member] | Supplier Concentration Risk [Member]          
Number of Vendors     2 1  
Accounts Payable Balance [Member] | Supplier Concentration Risk [Member] | Two Vendors [Member]          
Concentration Risk, Percentage     27.00%    
Accounts Payable Balance [Member] | Supplier Concentration Risk [Member] | One Vendor [Member]          
Concentration Risk, Percentage       19.00%