Annual report pursuant to Section 13 and 15(d)

Note 13 - Employee and Director Benefits (Details Textual)

v3.22.4
Note 13 - Employee and Director Benefits (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2014
Mar. 23, 2009
Share-Based Payment Arrangement, Expense $ 3,200,000 $ 1,900,000 $ 1,300,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) 0        
Postemployment Benefits, Period Expense $ 1,800,000 $ 1,600,000 $ 2,000,000.0    
Share-Based Payment Arrangement, Option [Member]          
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 201,000        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 1 month 6 days        
Restricted Stock [Member]          
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 4,300,000        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 10 months 24 days        
Performance Shares [Member]          
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 801,000        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 8 months 12 days        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) 3 years        
Performance Shares [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Shares Vested Upon Certain Performance Metrics, Percentage 0.00%        
Performance Shares [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Shares Vested Upon Certain Performance Metrics, Percentage 150.00%        
The 2009 Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)       5,550,000 2,550,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) 3,089,132