Quarterly report pursuant to Section 13 or 15(d)

Note 13 - Employee Stock Plans (Details Textual)

v3.24.2
Note 13 - Employee Stock Plans (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Feb. 01, 2024
May 31, 2010
Share-Based Payment Arrangement, Expense $ 2,478 $ 3,279 $ 2,833 $ 4,236    
Restricted Stock Units (RSUs) [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 27.69      
The 2010 Stock Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)           2,130,000
The 2010 Stock Incentive Plan [Member] | Equity Awards [Member]            
Share-Based Payment Arrangement, Expense 2,143 2,229 $ 2,457 3,249    
The 2010 Stock Incentive Plan [Member] | Performance Shares [Member]            
Share-Based Payment Arrangement, Expense   1,961   1,544    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 26.6      
Share-Based Payment Arrangement, Reversal of Expense 323   $ 1,392      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount 209   209      
The 2010 Stock Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]            
Share-Based Payment Arrangement, Expense 2,801 $ 1,318 4,225 $ 2,692    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 4,508   $ 4,508      
The 2024 Stock Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)         1,227,660  
The 2024 Stock Incentive Plan [Member] | Minimum [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period (Year)     10 years