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Schedule of Share-based Compensation, Stock Options, Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Payment Arrangement [Abstract]      
Shares, Outstanding beginning 136,340    
Weighted average exercise price per share, Outstanding beginning $ 19.87    
Weighted average remaining contractual term beginning 6 years 10 months 24 days    
Aggregate intrinsic value outstanding beginning $ 714    
Shares, Granted    
Weighted average exercise price per share, Granted    
Shares, Effect of 5% stock dividend 5,494    
Shares, Forfeited/expired (20,174)    
Weighted average exercise price per share, Forfeited/expired $ 16.30    
Shares, Exercised (19,030) (3,275) (72,130)
Weighted average exercise price per share, Exercised $ 10.41    
Shares, Outstanding ending 102,630 136,340  
Weighted average exercise price per share, Outstanding ending $ 21.26 $ 19.87  
Weighted average remaining contractual term ending 7 years 3 months 18 days    
Aggregate intrinsic value outstanding ending $ 202 $ 714  
Shares, Exercisable 38,338    
Weighted average exercise price per share, Exercisable $ 20.33    
Weighted average remaining contractual term, Exercisable 5 years 10 months 24 days    
Aggregate intrinsic value, Exercisable $ 120    
Shares, Fully vested options 38,338    
Weighted average exercise price per share, Fully vested options $ 20.33    
Weighted average remaining contractual term, Fully vested options 5 years 10 months 24 days    
Aggregate intrinsic value, Fully vested options $ 120