Quarterly report [Sections 13 or 15(d)]

Note 12 - Stock-based Compensation (Details Textual)

v3.25.1
Note 12 - Stock-based Compensation (Details Textual) - USD ($)
shares in Thousands, $ / shares in Thousands, $ in Thousands
3 Months Ended
Jun. 06, 2024
Mar. 31, 2025
Mar. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)   0 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   0 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)   $ 0 $ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value   $ 0 $ 0
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount   0  
Stock Issued During Period, Value, Employee Benefit Plan   236 $ 237
Restricted Stock Units (RSUs) [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value   119  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount   $ 499  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)   1 year 3 months  
Equity Incentive Plan 2014 [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) 1,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)   4,724  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)   695  
The 401(k) Plan [Member]      
Stock Issued During Period, Shares, Employee Benefit Plan (in shares)   556 163
Stock Issued During Period, Value, Employee Benefit Plan   $ 236 $ 237
Defined Contribution Plan, Employer Matching Contribution, Percent of Match   50.00%  
Defined Contribution Plan, (Income) Expense   $ (25) $ 29