Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Employee and Director Benefits (Details Textual)

v3.21.2
Note 7 - Employee and Director Benefits (Details Textual) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2014
Share-based Payment Arrangement, Expense $ 461,000 $ 340,000 $ 1,300,000 $ 969,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 12.73    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)       0  
Share-based Payment Arrangement, Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)     500 0  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total 467,000   $ 467,000    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     1 year 8 months 12 days    
Restricted Stock [Member]          
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 3,500,000   $ 3,500,000    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)     2 years 4 months 24 days    
Performance Shares [Member]          
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
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)         10 years