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Note 18 - Income Taxes - Summary of Effective Tax Rate and Statutory Federal Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
U.S. federal statutory tax rate $ (2,223) $ (1,666)
U.S. federal statutory tax rate, percent 21.00%  
State tax rate, net of federal effect $ (445) (293)
State tax rate, net of federal effect, percent 4.00%  
Change in valuation allowance $ 2,551 1,741
Change in valuation allowance, percent (24.00%)  
Nontaxable or nondeductible items $ 38  
Nontaxable or nondeductible items, percent (0.00%)  
Other adjustments $ 79 4
Other adjustments, percent (1.00%)  
Income tax provision $ (0) 71
Income tax provision, percent 0.00%  
Provision true-up adjustments   72
Foreign taxes at rate different than US Taxes   71
Permanent differences   $ 142