XML 59 R48.htm IDEA: XBRL DOCUMENT v3.22.1
Schedule of Stock Options Assumptions in Estimated Fair Value (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Volatility, minimum 112.94%  
Volatility, maximum 103.60%  
Volatility   107.50%
Risk free interest rate, minimum 0.08% 0.30%
Risk free interest rate, maximum 1.20% 0.36%
Dividend yield 0.00% 0.00%
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term 5 years 5 months 8 days 5 years 1 month 28 days
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term 6 years 6 months 5 years 9 months 3 days