v3.26.1
Note 2 - Liquidity and Summary of Significant Accounting Policies - Summary of Concentration Risk (Details) - Customer Concentration Risk [Member]
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Customer A [Member] | Accounts Receivable [Member]          
Concentration percentage     17.00%   19.00%
Customer A [Member] | Revenue Benchmark [Member]          
Concentration percentage 26.00% 11.00% 25.00% 0.00%  
Customer B [Member] | Revenue Benchmark [Member]          
Concentration percentage 17.00% 0.00% 10.00% 0.00%  
Customer C [Member] | Revenue Benchmark [Member]          
Concentration percentage   11.00% 0.00% 15.00%  
Customer D [Member] | Revenue Benchmark [Member]          
Concentration percentage   10.00% 0.00% 14.00%  
Customer E [Member] | Revenue Benchmark [Member]          
Concentration percentage   0.00% 0.00% 11.00%