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STOCKHOLDERS' EQUITY (Tables) | 6 Months Ended
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Jun. 30, 2020
STOCKHOLDERS' EQUITY |
Schedule of share purchase warrants | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ | ​ | Weighted Average | ​ | ​ |
​ | ​ | Number of | ​ | Weighted Average | ​ | Remaining Contractual | ​ | Total Intrinsic
​ |  | Warrants |  | Exercise Price | ​ | Life (in years) | ​ | Value
Balance - January 1, 2020 |  | 22,664,000 | ​ | $ | 4.71 | ​ | 3.33 | ​ | $ | 954,000
Exercised for cash | ​ | (458,000) | ​ | ​ | 1.20 | ​ | — | ​ |  | —
Expired or cancelled | ​ | (825,000) | ​ | ​ | 7.10 | ​ | — | ​ |  | —
Balance - June 30, 2020 | ​ | 21,381,000 | ​ | $ | 4.69 | ​ | 3.03 | ​ | $ | —

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- Definition Tabular disclosure of share purchase warrants. + References No definition available. + Details
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- References No definition available. + Details
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