Quarterly report pursuant to Section 13 or 15(d)

Note 16 - Stock-based Compensation Plans (Details Textual)

v3.23.1
Note 16 - Stock-based Compensation Plans (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Share-Based Payment Arrangement, Expense, Tax Benefit $ 1,000 $ 4,000  
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, Exercises in Period, Intrinsic Value $ 0 $ 11,000  
Proceeds from Stock Options Exercised 0 5,000  
Share-Based Payment Arrangement, Exercise of Option, Tax Benefit 0 $ 2,000  
Share-Based Payment Arrangement, Option [Member]      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 1,000    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 10 months 24 days    
Performance Share Unit, Type 2 [Member]      
Share Based Compensation Arrangement by Share Based Payment Award, Performance Period (Year)   2 years  
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate   37.90%  
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate   1.43%  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 0    
Performance Share Unit, Type 1 [Member]      
Share Based Compensation Arrangement by Share Based Payment Award, Performance Period (Year) 3 years 3 years  
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate 37.60% 43.50%  
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 4.38% 1.67%  
Restricted Stock Units (RSUs) [Member]      
Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Vested Not Issued (in shares) 115,685    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares) 9,400    
Performance Shares [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)     264,624
Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Vested Above Target Number (in shares) 132,314    
Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Vested Above Target, Grant Date Fair Value (in dollars per share) $ 22.85    
Nonvested Shares [Member]      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 52,000    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 2 years 3 months 18 days    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value $ 28,000 $ 31,000  
The 2016 Stock Incentive Plan [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) 5,000,000    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) 3 years    
The 2016 Stock Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year) 10 years    
The 2016 Stock Incentive Plan [Member] | Performance Share Unit, Type 2 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) 2 years