Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

WARRANT DERIVATIVE LIABILITY - Summary of Warrant Derivative Liability (Detail)

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WARRANT DERIVATIVE LIABILITY - Summary of Warrant Derivative Liability (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Warrant Derivative Liability - Summary Of Warrant Derivative Liability    
Number of Warrants, Opening Balance 28,969,671 21,203,411
Number of Warrants, Issued   15,257,252
Number of Warrants, Exercised (8,000,000) (7,257,252)
Number of Warrants, Expired (2,014,390) (233,740)
Number of Warrants, Change in fair value
Number of Warrants, Foreign exchange impact
Number of Warrants, Ending Balance 18,955,281 28,969,671
Fair value derivative warrant liability, Opening Balance $ 36,317 $ 3,621
Fair value derivative warrant liability, Issued   10,692
Fair value derivative warrant liability, Exercised (15,722) (5,948)
Fair value derivative warrant liability, Items that were classified to net loss:    
Fair value derivative warrant liability, Expired (274) (26)
Fair value derivative warrant liability, Change in fair value (15,434) 27,882
Fair value derivative warrant liability, Foreign exchange impact 43 96
Fair value derivative warrant liability, Ending Balance $ 4,930 $ 36,317