Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Stock-based Compensation (Details Textual)

v3.24.3
Note 11 - Stock-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Feb. 06, 2023
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Jun. 01, 2021
Common Stock, No Par Value   $ 0   $ 0   $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)   113,333   113,333      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)       10 years      
Employee Stock Purchase Plan, Maximum Payroll Deduction, Percent   15.00%   15.00%      
Employee Stock Purchase Plan, Stock Purchase Price, Percent   85.00%   85.00%      
Common shares issued under the ESPP plan (Shares)       27,681 5,991    
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount   $ 544   $ 544      
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)       1 year 5 months 15 days      
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount   $ 0   $ 0      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number   800,000 718,000 800,000 718,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price (in dollars per share)   $ 55.34 $ 58.98 $ 55.34 $ 58.98    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term       5 years 8 months 1 day 6 years 1 month 6 days    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term       6 years 6 months 25 days 7 years    
Share-based Payment Arrangement, Expense   $ (13) $ 599 $ 1,003 $ 3,242    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)       408,000 217,000    
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price       $ 2 $ 9.87    
Weighted average grant date fair value, exercise price       $ 9.9      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)       0 38,000    
Common shares issued upon redemption of restricted share units, shares 38,000            
New Incentive Plan [Member]              
Common Stock, No Par Value             $ 0
New Incentive Plan [Member] | Maximum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)             691,400