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Share Based Compensation Plan (Tables)
12 Months Ended
Dec. 31, 2017
Share Based Compensation Plan [Abstract]  
Summary of option activity under Company's Plan
  Shares     Weighted- 
Average 
Exercise Price
    Weighted- 
Average 
Remaining 
Term
    Aggregate 
Intrinsic Value
 
Outstanding, beginning of year     145,894     $ 8.12                  
Granted     -       -                  
Exercised     (42,517 )     9.83                  
Forfeited     (750 )     6.98                  
Expired     (10,127 )     11.50                  
Outstanding, end of year     92,500     $ 6.97       2.12     $ 1,065,420  
Exercisable, end of year     92,500     $ 6.97       2.12     $ 1,065,420
Summary of restricted stock activity under the Company's plan
    Shares     Weighted- 
Average Value 
per Share
 
Nonvested, beginning of year     35,503     $ 9.44  
Granted     32,752       18.30  
Vested     (13,433 )     9.03  
Forfeited     (2,564 )     13.29  
Nonvested, end of year     52,258     $ 14.91