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Share Based Compensation Plan (Details)
 12 Months Ended
Dec. 31, 2016
USD ($)
$ / shares
shares
Summary of option activity under Company's Plan  
Shares Outstanding, beginning of year | shares 140,074
Shares Granted | shares
Shares Exercised | shares (38,514)
Shares Forfeited | shares (1,750)
Shares Expired | shares
Shares Outstanding, end of year | shares 99,810
Shares Exercisable, end of year | shares 99,810
Weighted - Average Exercise Price, Outstanding, beginning of year | $ / shares $ 8.12
Weighted - Average Exercise Price, Granted | $ / shares
Weighted - Average Exerise Price, Exercised | $ / shares 8.72
Weighted - Average Exercise Price, Forfeited | $ / shares 9.56
Weighted - Average Exercise Price, Expired | $ / shares
Weighted - Average Exercise Price, Outstanding, end of year | $ / shares 7.85
Weighted - Average Exercise Price, Exercisable, end of year | $ / shares $ 7.85
Weighted - Average Remaining Contractual Term, Outstanding, end of year 2 years 6 months 15 days
Weighted - Average Remaining Contractual Term, Exercisable, end of year 2 years 6 months 15 days
Aggregate Intrinsic Value, Outstanding, end of year | $ $ 818,741
Aggregate Intrinsic Value, Exercisable, end of year | $ $ 818,741