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Share-Based Compensation - Textual (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options exercised during period     4,340  
Unrecognized compensation cost related to non-vested share-based compensation arrangements $ 220,000   $ 220,000  
Weighted average period to recognize unrecognized share-based compensation cost     2 years 8 months 27 days  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value     3,000 2,000
Nonvested and expected to vest     8,905  
Share-based compensation expense 28,000 25,000 54,000 50,000
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 3,000 11,000 10,000 15,000
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 93,000   93,000  
Granted (in shares)     8,905  
Granted (in dollars per share)     $ 11.23  
Share-based compensation expense 5,000   7,000 0
Weighted average remaining period     4 years 7 months 2 days  
Intrinsic value $ 117,000   $ 117,000  
Restricted Common Stock [Member] | Annual Vesting [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting percent     20.00%