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Schedule of Stock Options, Valuation Assumptions (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Payment Arrangement [Abstract]    
Risk-free interest rate 0.79% 0.75%
Expected life 6 years 6 years 6 months
Expected volatility 134.73% 123.71%
Dividend yield