Quarterly report pursuant to Section 13 or 15(d)

3. Stock-Based Compensation (Details)

v3.5.0.2
3. Stock-Based Compensation (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Stock-based Compensation Details        
Risk free interest rate, minimum 0.70% 1.61% 0.70% 1.61%
Risk free interest rate, maximum 1.73% 1.97% 1.73% 1.97%
Dividend yield 0.00% 0.00% 0.00% 0.00%
Expected term, minimum 2 years 5 years 2 years 5 years
Expected term, maximum 10 years 10 years 10 years 10 years
Expected volatility, minimum 35.90% 41.20% 34.90% 41.20%
Expected volatility, maximum 50.40% 54.20% 50.40% 54.20%