Quarterly report pursuant to Section 13 or 15(d)

Stockholders Equity and StockBased Compensation (Details 1)

v3.21.2
Stockholders Equity and StockBased Compensation (Details 1)
9 Months Ended
Sep. 30, 2021
USD ($)
$ / shares
Dividend yield rate | $ $ 0
Minimum [Member]  
Expected volatility 95.15%
Risk free interest rate 0.06%
Weighted average years 1 year
Common stock , price per share $ 4.55
Maximum [Member]  
Expected volatility 131.85%
Risk free interest rate 0.93%
Weighted average years 6 years
Common stock , price per share $ 6.51