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STOCKHOLDERS' EQUITY - Share Purchase Warrants (Details) - $ / shares | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
STOCKHOLDERS' EQUITY |  |
Number of Warrants, Beginning balance | 19,830,000 |
Number of Warrants, Ending balance | 19,830,000 | 19,830,000
Weighted Average Exercise Price, Beginning Balance | $ 4.42 |
Weighted Average Exercise Price, Ending Balance | $ 4.42 | $ 4.42
Weighted Average Remaining Contractual Life (in years) | 1 year 5 months 15 days | 1 year 8 months 12 days

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- Definition Class Of Warrant Or Rights Outstanding Weighted Average Exercise Price. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Class of warrant or right outstanding issued weighted average remaining life. + References No definition available. + Details
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X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
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