v3.26.1
Note 2 - Summary of Significant Accounting Policies - Credit Concentration (Details) - Customer A [Member] - Customer Concentration Risk [Member]
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Revenue from Contract with Customer Benchmark [Member]    
Credit concentration 59.00% 77.00%
Accounts Receivable [Member]    
Credit concentration 0.00% 82.00%