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Stock-Based Compensation (Summary of Unvested Stock Options) (Details) (USD $)
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Shares:    
Unvested, beginning of period (in shares) 49,334  
Granted (in shares) 47,000  
Vested (in shares) (26,335)  
Canceled/Forfeited (in shares) (6,917)  
Unvested, end of period (in shares) 63,082  
Weighted Average Grant Date Fair Value:    
Unvested, weighted average grant date fair value, beginning of period (in USD per share) $ 9.01  
Granted, weighted average grant date fair value (in USD per share) $ 10.30  
Vested, weighted average grant date fair value (in USD per share) $ 9.05  
Canceled/Forfeited, weighted average grant date fair value (in USD per share) $ 9.79  
Unvested, weighted average grant date fair value, end of period (in USD per share) $ 9.87  
Stock Options
   
Weighted Average Grant Date Fair Value:    
Unrecognized compensation cost related to stock options $ 399,828  
Unrecognized compensation cost related to awards, weighted average period for recognition 2 years 1 month 21 days  
Share-based compensation expense $ 122,702 $ 330,000