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Note 17 - Income Taxes - Reconciliation Between U.S. Federal Statutory Rate and Effective Rate (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Statutory federal income tax rate $ (1,954)    
Statutory federal income tax rate 21.00% 21.00% 21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount [1] $ 207    
State tax expense, net of federal provision** (2.20%) [1] (52.20%) 9.50%
Stock-based compensation (11.70%) (17.20%) 11.80%
Section 162(m) limitation (6.50%) (30.10%) 28.30%
Change in tax rates and state apportionment   10.40% 0.00%
Global intangible low-taxed income, net $ 371    
Federal, state and foreign tax credits   22.50% (23.10%)
Global intangible low-taxed income, net (4.00%)    
Change in valuation allowance 0.10% (157.30%) 173.00%
Research and development tax credits $ (416)    
Research and development tax credits 4.50%    
Return to provision adjustments (6.40%) 5.50% (3.60%)
Change in valuation allowance $ (13)    
Tax reserves   (20.90%) 0.00%
Stock-based compensation 1,092    
Other permanent items   (1.10%) (7.90%)
Section 162(m) limitation $ 616    
Effective income tax rate (7.10%) (219.40%) 209.00%
Other $ 43    
Other (0.50%)    
Return to provision adjustments $ 591    
Other $ (124)    
Other 1.40%    
Total provision for income taxes $ 672 $ 6,064 $ 6,595
Foreign Tax Jurisdiction [Member] | Ministry of Economic Affairs and Finance, Italy [Member]      
Italy $ 196    
Italy (2.10%)    
Foreign Tax Jurisdiction [Member] | All Foreign Countries Other Than Italy [Member]      
Italy $ 63    
Italy (0.70%)    
[1] **State taxes in Indiana, Massachusetts and Kentucky made up the majority (greater than 50 percent) of the tax effect in this category.