XML 51 R40.htm IDEA: XBRL DOCUMENT v3.21.2
Equity (Details 1)
9 Months Ended
Sep. 30, 2021
$ / shares
Dividend yield 0.00%
Expected life 3 years 3 days
Expected volatility 84.01%
Risk-free interest rate 0.37%
Minimum [Member]  
Exercise Price $ 2.94
Maximum [Member]  
Exercise Price $ 10.11