XML 70 R21.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stock-Based Compensation (Summary of Unvested Stock Options) (Details) (USD $)
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Employee Service Share-based Compensation, Nonvested Awards, Stock Options, Outstanding [Roll Forward]    
Unvested, beginning of period 49,334  
Granted 47,000  
Vested (26,335)  
Canceled/Forfeited (917)  
Unvested, end of period 69,082  
Employee Service Share-based Compensation, Nonvested Awards, Stock Options, Weighted Average Grant Date Fair Value [Roll Forward]    
Unvested, weighted average grant date fair value, beginning of period $ 9.01  
Granted, weighted average grant date fair value $ 10.30  
Vested, weighted average grant date fair value $ 9.05  
Canceled/Forfeited, weighted average grant date fair value $ 8.74  
Unvested, weighted average grant date fair value, end of period $ 9.88  
Stock Options
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation cost related to stock options $ 505,690  
Unrecognized compensation cost related to awards, weighted average period for recognition 2 years 3 months 29 days  
Share-based compensation expense $ 57,144 $ 214,083