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Stock-Based Compensation (Stock Option Activity) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 0 Months Ended 6 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2012
Options, Outstanding [Roll Forward]      
Outstanding, beginning of period     422,239
Granted     20,000
Exercised     7,500
Canceled/Forfeited     0
Outstanding, end of period 434,739 422,239 434,739
Exercisable, end of period 366,072   366,072
Options, Outstanding, Weighted Average Exercise Price [Roll Forward]      
Outstanding, weighted average exercise price, beginning of period     $ 15.06
Granted, weighted average exercise price     $ 14.89
Exercised, weighted average exercise price     $ 7.66
Canceled/Forfeited, weighted average exercise price     $ 0.00
Outstanding, weighted average exercise price, end of period $ 15.18 $ 15.06 $ 15.18
Exercisable, weighted average exercise price, end of period $ 14.81   $ 14.81
Options, Weighted Average Remaining Contractual Term:      
Outstanding, weighted average remaining contractual life (years), beginning of period 6 years 1 month 6 days 6 years 5 months 23 days  
Granted, weighted average remaining contractual life (years)     8 years
Outstanding, weighted average remaining contractual life (years), end of period 6 years 1 month 6 days 6 years 5 months 23 days  
Exercisable, weighted average remaining contractual life (years), end of period 5 years 7 months 28 days    
Options, Intrinsic Value:      
Outstanding, aggregate intrinsic value, beginning of period     $ 766
Outstanding, aggregate intrinsic value, end of period 770 766 770
Exercisable, aggregate intrinsic value, end of period $ 770   $ 770
Stock Options
      
Options, Intrinsic Value:      
Award vesting period     3 years