Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Warrant Liabilities - Fair Value Assumptions (Details)

v3.5.0.2
Fair Value Measurements - Warrant Liabilities - Fair Value Assumptions (Details) - Warrant Liabilities [Member]
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Minimum [Member]    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Expected volatility 78.00% 166.00%
Risk-free interest rate 0.28% 0.64%
Expected term 5 months 9 days 11 months 9 days
Maximum [Member]    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Expected volatility 100.00% 183.00%
Risk-free interest rate 0.41% 0.74%
Expected term 8 months 9 days 1 year 2 months 9 days