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WARRANT LIABILITY AND FAIR VALUE MEASUREMENTS - Valuation Methodology (Details) - Share Purchase Warrants - $ / shares | 6 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Exercise price | $ 0 | $ 9.72
Contractual term (years) | 0 years | 6 months 29 days
Volatility (annual) | 0.00% | 78.00%
Risk-free rate | 0.00% | 2.00%
Dividend yield (per share) | 0.00% | 0.00%

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- Definition Agreed upon price for the exchange of the underlying asset. + References No definition available. + Details
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- Definition Expected dividends to be paid to holders of the underlying shares or financial instruments. + References No definition available. + Details
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- Definition Period the instrument, asset or liability is expected to be outstanding. + References No definition available. + Details
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- Definition Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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