Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Stock-based Compensation (Details Textual)

v3.24.1.1.u2
Note 12 - Stock-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Feb. 06, 2023
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Jun. 01, 2021
Common Stock, No Par Value   $ 0   $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)   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%      
Employee Stock Purchase Plan, Stock Purchase Price, Percent   85.00%      
Common shares issued under the ESPP plan (Shares)   10,891 1,438    
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount   $ 1,120      
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)   1 year 8 months 23 days      
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount   $ 7      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number   896,000 733,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price (in dollars per share)   $ 53.41 $ 62.55    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term   5 years 6 months 21 days 5 years 6 months 14 days    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term   7 years 10 days 6 years 10 months 2 days    
Share-based Payment Arrangement, Expense   $ 809 $ 1,874    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)   408,000 215,000    
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price   $ 2 $ 8.4    
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