XML 39 R29.htm IDEA: XBRL DOCUMENT v3.21.1
Stock Options (Details 1)
3 Months Ended
Mar. 31, 2021
Income Taxes Tables  
Risk-free interest rate 1.67%
Expected life in years 4 years 3 months 8 days
Expected Volatility 107.73%
Expected dividend yield 0.00%