Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Schedule of Assumptions used in Estimating Fair Value (Details)

v3.8.0.1
Fair Value Measurements - Schedule of Assumptions used in Estimating Fair Value (Details) - Common Stock Warrants [Member]
3 Months Ended 12 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Black-Scholes-Merton Valuation Model [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Weighted-average risk-free interest rate 2.36% 1.89%
Weighted-average expected life (in years) 1 year 6 months 1 year 10 months 25 days
Expected dividend yield 0.00% 0.00%
Weighted average expected volatility 104.00% 107.00%
Monte Carlo Simulation Valuation Model [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Weighted-average risk-free interest rate 2.56% 2.20%
Weighted-average expected life (in years) 3 years 3 months 19 days 3 years 7 months 6 days
Expected dividend yield 0.00% 0.00%
Weighted average expected volatility 63.00% 64.00%