v3.25.2
Note 2 - Significant Accounting Policies (Details Textual)
3 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Number of Operating Segments 1  
Number of Reportable Segments 1  
Contract with Customer, Liability, Revenue Recognized $ 1,000 $ 45,000
Customer Concentration Risk [Member] | Revenue Benchmark [Member]    
Number of Major Customers 3 2
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Customer Number 1 [Member]    
Concentration Risk, Percentage 20.00% 31.00%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Customer Number 2 [Member]    
Concentration Risk, Percentage 12.00% 13.00%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Customer Number 3 [Member]    
Concentration Risk, Percentage 12.00%  
Customer Concentration Risk [Member] | Accounts Receivable [Member]    
Number of Major Customers 3 2
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Three Customers [Member]    
Concentration Risk, Percentage 62.00%  
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Two Customers [Member]    
Concentration Risk, Percentage   61.00%