Quarterly report [Sections 13 or 15(d)]

Note 12 - Stock-based Compensation (Details Textual)

v3.25.3
Note 12 - Stock-based Compensation (Details Textual) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
May 16, 2025
Sep. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Mar. 31, 2024
Sep. 30, 2025
Sep. 30, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)   0   0   0 0
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount   $ 0       $ 0  
Stock Issued During Period, Value, Employee Benefit Plan     $ 236   $ 237    
Defined Contribution Plan, (Income) Expense           79 $ 177
Restricted Stock Units (RSUs) [Member]              
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount   $ 456       $ 456  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           1 year 29 days  
Equity Incentive Plan 2014 [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) 153            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)   468       468  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)   115       115  
The 401(k) Plan [Member]              
Stock Issued During Period, Shares, Employee Benefit Plan (in shares)           37 11
Stock Issued During Period, Value, Employee Benefit Plan           $ 236 $ 237
Defined Contribution Plan, Employer Matching Contribution, Percent of Match           50.00%