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Stock Based Compensation, Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Period options granted to date vest ratably 5 years  
Period options granted expires after date of grant 10 years  
Compensation expense relating to restricted stock $ 56 $ 22
Stock Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Aggregate intrinsic value for option outstanding 252 339
Aggregate intrinsic value of options exercisable 252 330
Total expense related to options included in salaries and wages 1 1
Tax benefit from compensation expense 0 0
Restricted Stock Awards [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Compensation expense relating to restricted stock 56 22
Tax benefit from compensation expense 19 $ 8
Restricted stock compensation costs not yet recognized $ 102  
Compensation costs not yet recognized, period for recognition 4 years 10 months  
Ownership Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares authorized for issuance (in shares) 200,000  
2015 Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares authorized for issuance (in shares) 450,000