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Share-Based Compensation - Textual (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options exercised during period     5,760  
Unrecognized compensation cost related to non-vested share-based compensation arrangements $ 99   $ 99  
Weighted average period to recognize unrecognized share-based compensation cost     1 year 10 months 50 days  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value     $ 90 $ 98
Nonvested and expected to vest     53,028  
Share-based compensation expense 61 $ 39 $ 184 93
2005 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     5 years  
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Tax benefit of stock option compensation expense 1 $ 2 $ 11 $ 12
Restricted Common Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost related to non-vested share-based compensation arrangements 595   $ 595  
Granted (in shares)   48,425 9,268 57,330
Weighted average remaining period     3 years 9 months 28 days  
Intrinsic value $ 642   $ 642  
Restricted Common Stock [Member] | Annual Vesting [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting percent     20.00%