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STOCKHOLDERS' EQUITY - Share Purchase Warrants (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
STOCKHOLDERS' EQUITY |  |
Number of Warrants, Beginning balance | 22,664,000 |
Number of Warrants, Exercised for cash | (458,000) |
Number of Warrants, Expired or cancelled | (1,242,000) |
Number of Warrants, Ending balance | 20,964,000 | 22,664,000
Weighted Average Exercise Price, Beginning Balance | $ 4.71 |
Weighted Average Exercise Price, Exercised for cash | 1.20 |
Weighted Average Exercise Price, Expired or cancelled | 9.75 |
Weighted Average Exercise Price, Ending Balance | $ 4.49 | $ 4.71
Weighted Average Remaining Contractual Life (in years) | 2 years 10 months 2 days | 3 years 3 months 29 days
Total Intrinsic Value |  | $ 954,000

X
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