Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Weighted Average Assumptions (Details)

v3.5.0.2
Stock-based Compensation - Weighted Average Assumptions (Details) - Stock Options [Member]
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Stock-based awards weighted average assumptions [Abstract]        
Dividend yield 0.00% 0.00% 0.00% 0.00%
Expected volatility 102.00% 103.00% 103.00% 83.00%
Risk-free interest rate 1.13% 1.36% 1.14% 1.40%
Expected term 5 years 7 months 6 days 5 years 7 months 6 days 5 years 7 months 6 days 5 years 7 months 6 days