XML 34 R23.htm IDEA: XBRL DOCUMENT v3.19.2
Equity - Schedule of Stock Options Fair Value Assumptions Estimated Using Black-Scholes Pricing Model (Details)
6 Months Ended
Jun. 30, 2019
Equity [Abstract]  
Risk-free interest rate 2.30%
Expected term of options 4 years 8 months 12 days
Expected annual volatility 119.00%
Expected dividend yield 0.00%