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Share Based Compensation Plan (Tables)
12 Months Ended
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   Shares   Weighted-Average
Exercise Price
   Weighted-Average
Remaining Term
   Aggregate
Intrinsic Value
 
                 
Outstanding, beginning of year   64,000   $6.99           
Granted   -    -           
Exercised   (35,750)   7.00           
Forfeited   -    -           
Expired   -    -           
Outstanding, end of year   28,250   $6.98    0.13   $359,058 
                     
Exercisable, end of year   28,250   $6.98    0.13   $359,058 
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
   Shares   Weighted-Average
Value per Share
 
         
Nonvested, beginning of year   46,894   $16.31 
           
Granted   27,590    18.06 
Vested   (25,010)   16.05 
Forfeited   (5,733)   17.53 
           
Nonvested, end of year   43,741   $17.41