Quarterly report pursuant to Section 13 or 15(d)

Derivative Liability and Fair Value Measurements (Estimate the fair value of warrants outstanding) (Detail)

v3.7.0.1
Derivative Liability and Fair Value Measurements (Estimate the fair value of warrants outstanding) (Detail) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Assumptions for Pricing Model:    
Expected annual dividends 0.00% 0.00%
Monte Carlo Options Lattice Pricing Model Warrants Outstanding    
Assumptions for Pricing Model:    
Expected term in years 1 year 4 months 6 days 1 year 2 months 19 days
Volatility range for years 115.00% 100.00%
Risk-free interest rate 1.03% 1.47%
Value of warrants outstanding:    
Fair value of warrants $ 150,571 $ 173,131