Quarterly report pursuant to Section 13 or 15(d)

Capital Transactions (Details 3)

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Capital Transactions (Details 3) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Stock options
     
Share Based Compensation      
Outstanding options to purchase (in shares) 2,175   1,926
Exercisable (in shares) 1,017   838
Expected to vest (in shares) 972   905
Aggregate Intrinsic value, outstanding $ 3,492   $ 9,415
Aggregate Intrinsic value, exercisable 3,280   6,069
Aggregate Intrinsic value, expected to vest 201   3,179
RSUs
     
Share-based compensation, additional disclosures      
Share-based compensation expense 197 74  
Related tax benefits 78 29  
Unrecognized share-based compensation expense $ 1,551   $ 62
Weighted-average period over which the remaining compensation expense is expected to be recognized 2 years 4 months 24 days    
2012 Stock Incentive Plan | RSUs
     
Number of Shares      
Units outstanding at the beginning of the period (in shares) 32    
Granted (in shares) 118    
Units outstanding at the end of the period (in shares) 150    
Weighted Average Grant Date Fair Value      
Units outstanding at the beginning of the period (in dollars per share) $ 12.47    
Granted (in dollars per share) $ 14.33    
Units outstanding at the end of the period (in dollars per share) $ 13.72    
Share-based compensation, additional disclosures      
Vesting period 4 years    
Discount for lack of marketability ( as a percent) 17.50%