Quarterly report pursuant to Section 13 or 15(d)

Equity Transactions - Schedule of Fair Value Assumptions Using Black-Scholes Method (Details)

v3.19.2
Equity Transactions - Schedule of Fair Value Assumptions Using Black-Scholes Method (Details)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Equity [Abstract]    
Risk-free interest rate, minimum 1.91% 2.75%
Risk-free interest rate, maximum 2.00% 2.85%
Average expected term (years) 5 years 5 years
Expected volatility, minimum 201.30% 184.50%
Expected volatility, maximum 241.70% 190.20%
Expected dividend yield 0.00% 0.00%