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Stock Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
0 Months Ended 3 Months Ended 6 Months Ended
Feb. 21, 2014
Feb. 21, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Unvested Restricted Shares [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares) 4,050 5,712        
Non-vested equity instruments other than options, shares [Roll Forward]            
Nonvested at beginning of period (in shares)         34,109  
Granted (in shares)         14,620  
Vested (in shares)         (13,764)  
Forfeited (in shares)         0  
Nonvested at end of period (in shares)     34,965   34,965  
Non-vested equity instruments other than option, weighted average fair value [Roll Forward]            
Nonvested at January 1, 2013 (in dollars per share)         $ 12.65  
Granted (in dollars per share)         $ 15.70  
Vested (in dollars per share)         $ 14.73  
Nonvested at end of period (in dollars per share)     $ 13.11   $ 13.11  
Unvested Restricted Shares [Member] | Non employee Director [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Compensation expense     $ 0 $ 0 $ 64 $ 68
Unvested Restricted Shares [Member] | Executive Officer [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Compensation expense     38 36 75 74
Total unrecognized compensation cost     250   250  
Recognition period for total unrecognized compensation costs     30 months   3 years  
Performance based stock rights [Member]
           
Non-vested equity instruments other than options, shares [Roll Forward]            
Nonvested at beginning of period (in shares)         34,109  
Granted (in shares)         10,746  
Vested (in shares)         (9,714)  
Forfeited (in shares)         0  
Nonvested at end of period (in shares)     35,141   35,141  
Non-vested equity instruments other than option, weighted average fair value [Roll Forward]            
Nonvested at January 1, 2013 (in dollars per share)         $ 12.65  
Granted (in dollars per share)         $ 15.69  
Vested (in dollars per share)         $ 14.30  
Nonvested at end of period (in dollars per share)     $ 13.12   $ 13.12  
Stock Incentive Plan [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares authorized (in shares)     350,000   350,000  
Stock Incentive Plan [Member] | Stock Options [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Exercise price of options as percentage of market price (in hundredths)     100.00%      
Award vesting period     3 years      
Award term     10 years      
Stock Incentive Plan [Member] | Unvested Restricted Shares [Member] | Executive Officer [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares) 10,570 12,470        
Stock Incentive Plan [Member] | Performance based stock rights [Member] | Executive Officer [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares) 10,746 12,470        
Compensation expense     $ 31 $ 21 $ 57 $ 42