Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details 3)

v2.4.0.8
Stock-Based Compensation (Details 3) (Stock options, USD $)
6 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Stock options    
Outstanding at the beginning of the period (in shares) 70,339  
Outstanding at the end of the period (in shares) 70,339 70,339
Expected to vest (in shares) 70,339  
Weighted average exercise price    
Outstanding at the beginning of the period (in dollars per share) $ 54.15  
Outstanding at the end of the period (in dollars per share) $ 54.15 $ 54.15
Expected to vest (in dollars per share) $ 54.15  
Weighted average remaining contractual life    
Outstanding at the beginning of the period 9 years 3 months 14 days 9 years 9 months 14 days
Outstanding at the end of the period 9 years 3 months 14 days 9 years 9 months 14 days
Expected to vest 9 years 3 months 14 days  
Intrinsic Value    
Outstanding at the beginning of the period $ 653,000  
Outstanding at the end of the period 807,000 653,000
Expected to vest 807,000  
Weighted-average assumptions used to calculate fair value of stock options granted    
Dividend yield (as a percent) 0.00%  
Volatility (as a percent) 35.00%  
Risk-free interest rate (as a percent) 1.48%  
Expected life 6 years 2 months 1 day  
Weighted average fair value of options granted (in dollars per share) $ 20.20  
Additional disclosures    
Unrecognized stock-based compensation expense $ 1,100,000  
Weighted average period for recognizing unrecognized stock-based compensation expense 3 years  
Minimum
   
Stock-based compensation    
Vesting period 1 year  
Maximum
   
Stock-based compensation    
Vesting period 4 years  
Contractual life 10 years