v3.26.1
Note 8 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 6 Months Ended
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Share-Based Payment Arrangement, Expense   $ 2,000,000 $ 1,700,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)   197,000   293,000
The 2025 Employee Stock Purchase Plan [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Offering Date 5.00%      
Common Stock, Capital Shares Reserved for Future Issuance (in shares) 200,000 195,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Minimum Employee Payroll Deduction $ 5      
Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Payroll Deduction $ 200      
The 2025 Employee Stock Purchase Plan [Member] | Maximum [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent 95.00%      
Performance Shares [Member] | Executive Officer [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   17,422