Quarterly report pursuant to Section 13 or 15(d)

7. Stockholders' Equity: Valuation Assumptions (Details)

v3.20.2
7. Stockholders' Equity: Valuation Assumptions (Details)
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Share-based Payment Arrangement [Abstract]    
Risk-free interest rate 0.58% 2.25%
Expected life (years) 6 years 6 years
Expected dividend yield 0.00% 0.00%
Expected volatility 77.57% 81.67%