v3.3.0.814
Employee Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The weighted average grant date fair value of the options was $4.20 and was determined using the Black-Scholes option-pricing model with the following weighted average assumptions:

 

Expected life

6.0 years

 

Expected volatility

75.2%

 

Expected dividend yield

0.00%

 

Risk-free rate

1.75%