Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Employee and Director Benefits - Summary of Stock Option Activity (Details)

v3.20.2
Note 7 - Employee and Director Benefits - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2020
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Granted (in shares)   0      
Share-based Payment Arrangement, Option [Member]          
Outstanding, shares (in shares) 965,248 965,248 1,238,748 1,238,748  
Outstanding, weighted average exercise price (in dollars per share) $ 15.19 $ 15.19 $ 13.02 $ 13.02  
Outstanding, weighted average remaining contractual term (Year) 5 years 3 months 18 days   5 years 3 months 18 days 4 years 10 months 24 days 5 years 2 months 12 days
Outstanding, aggregate intrinsic value   $ 13,808 $ 21,233 $ 21,911 $ 23,355
Granted (in shares)   0 10,500    
Granted, weighted average exercise price (in dollars per share)   $ 0 $ 34.44    
Granted, aggregate intrinsic value   $ 0 $ (2)    
Exercised (in shares)   (236,000) (188,500)    
Exercised, weighted average exercise price (in dollars per share)   $ 10.36 $ 5.58    
Exercised, weighted average remaining contractual term (Year) 3 years 1 month 6 days   1 year 9 months 18 days    
Exercised, aggregate intrinsic value   $ 5,995 $ 5,014    
Forfeited (in shares)   (18,000) (13,000)    
Forfeited, weighted average exercise price (in dollars per share)   $ 30.79 $ 29.93    
Forfeited, weighted average remaining contractual term (Year) 6 years 7 months 6 days        
Forfeited, aggregate intrinsic value   $ 90 $ 56    
Exercisable, shares (in shares)   236,500 328,800    
Exercisable, weighted average exercise price (in dollars per share)   $ 12.76 $ 8.13    
Exercisable, weighted average remaining contractual term (Year) 3 years 7 months 6 days   3 years 8 months 12 days    
Exercisable, aggregate intrinsic value   $ 5,446 $ 8,964    
Granted, weighted average remaining contractual term (Year)     9 years 8 months 12 days    
Outstanding, shares (in shares)   711,248 1,047,748 965,248 1,238,748
Outstanding, weighted average exercise price (in dollars per share)   $ 18.21 $ 14.37 $ 15.19 $ 13.02