STOCK OPTIONS (Details 1) - $ / shares |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
Statement [Line Items] | |||
Expected volatility | 75.52% | ||
Expected option life in years | 10 years | 10 years | |
Minimum [Member] | |||
Statement [Line Items] | |||
Share price | $ 0.40 | $ 1.75 | $ 1.81 |
Exercise price | $ 0.38 | $ 1.75 | $ 1.81 |
Risk-free interest rate | 2.93% | 1.60% | 1.12% |
Expected volatility | 116.39% | 107.05% | 81.34% |
Expected option life in years | 4 years | ||
Maximum [Member] | |||
Statement [Line Items] | |||
Share price | $ 1.30 | $ 1.83 | $ 2.86 |
Exercise price | $ 3.43 | $ 1.83 | $ 2.86 |
Risk-free interest rate | 3.57% | 1.64% | 1.67% |
Expected volatility | 119.84% | 107.47% | 106.56% |
Expected option life in years | 10 years |