Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies (Fair Value Valuation Assumptions) (Details)

v3.7.0.1
Basis of Presentation and Summary of Significant Accounting Policies (Fair Value Valuation Assumptions) (Details)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Summary of fair-value options awarded to employees and directors    
Risk-free interest rate 2.10% 1.50%
Dividend yield 0.00% 0.00%
Expected volatility 47.00% 50.00%
Expected term 6 years 10 months 24 days 6 years 7 months 6 days