Annual reports filed by certain Canadian issuers pursuant to Section 15(d) and Rule 15d-4

SHARE CAPITAL - Summary of Weighted-Average Remaining Contractual Life and Weighted-Average Exercise Price (Detail)

v3.21.1
SHARE CAPITAL - Summary of Weighted-Average Remaining Contractual Life and Weighted-Average Exercise Price (Detail)
 12 Months Ended
Dec. 31, 2020
shares
$ / shares
Dec. 31, 2019
shares
Dec. 31, 2018
shares
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Options Outstanding, Number Outstanding 2,131,716 1,219,276  
Weighted average remaining contractual life of outstanding share options 5 years 7 months 21 days 5 years 5 months 9 days  
Options Outstanding, Options Exercisable 584,585    
Canadian Dollar [Member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Options Outstanding, Number Outstanding 833,965 860,379 875,433
Weighted average remaining contractual life of outstanding share options 3 years 7 months 10 days    
Options Outstanding, Options Exercisable 507,780    
Canadian Dollar [Member] | $0.73 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 0.66    
Options Outstanding, Number Outstanding 25,765    
Weighted average remaining contractual life of outstanding share options 6 years 29 days    
Options Outstanding, Options Exercisable 25,765    
Canadian Dollar [Member] | $4.50 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 0.96    
Options Outstanding, Number Outstanding 27,304    
Weighted average remaining contractual life of outstanding share options 6 years 9 months    
Options Outstanding, Options Exercisable 27,304    
Canadian Dollar [Member] | $4.54 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 1.27    
Options Outstanding, Number Outstanding 22,425    
Weighted average remaining contractual life of outstanding share options 6 years 6 months 29 days    
Options Outstanding, Options Exercisable 22,425    
Canadian Dollar [Member] | $4.80 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 1.70    
Options Outstanding, Number Outstanding 4,000    
Weighted average remaining contractual life of outstanding share options 6 years 11 months 12 days    
Options Outstanding, Options Exercisable    
Canadian Dollar [Member] | $7.49 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 3.28    
Options Outstanding, Number Outstanding 31,498    
Weighted average remaining contractual life of outstanding share options 4 years 7 months 28 days    
Options Outstanding, Options Exercisable 31,498    
Canadian Dollar [Member] | $9.00 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 4.54    
Options Outstanding, Number Outstanding 682,422    
Weighted average remaining contractual life of outstanding share options 3 years 1 month 2 days    
Options Outstanding, Options Exercisable 360,237    
Canadian Dollar [Member] | $9.60 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 9.00    
Options Outstanding, Number Outstanding 11,481    
Weighted average remaining contractual life of outstanding share options 4 years 6 months 7 days    
Options Outstanding, Options Exercisable 11,481    
Canadian Dollar [Member] | $11.70 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 30.00    
Options Outstanding, Number Outstanding 28,260    
Weighted average remaining contractual life of outstanding share options 7 months 24 days    
Options Outstanding, Options Exercisable 28,260    
Canadian Dollar [Member] | $12.00 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 32.40    
Options Outstanding, Number Outstanding 810    
Weighted average remaining contractual life of outstanding share options 26 days    
Options Outstanding, Options Exercisable 810    
US Dollar [Member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Options Outstanding, Number Outstanding 2,089,805 854,042 50,349
Weighted average remaining contractual life of outstanding share options 6 years 5 months 12 days    
Options Outstanding, Options Exercisable 76,805    
US Dollar [Member] | $0.73 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 0.73    
Options Outstanding, Number Outstanding 19,568    
Weighted average remaining contractual life of outstanding share options 6 years 9 months    
Options Outstanding, Options Exercisable 19,568    
US Dollar [Member] | $0.75 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 0.75    
Options Outstanding, Number Outstanding 4,723    
Weighted average remaining contractual life of outstanding share options 2 years 9 months    
Options Outstanding, Options Exercisable 4,723    
US Dollar [Member] | $0.96 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 0.96    
Options Outstanding, Number Outstanding 1,350,000    
Weighted average remaining contractual life of outstanding share options 6 years 6 months 29 days    
Options Outstanding, Options Exercisable    
US Dollar [Member] | $1.31 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 1.31    
Options Outstanding, Number Outstanding 623,000    
Weighted average remaining contractual life of outstanding share options 6 years 11 months 12 days    
Options Outstanding, Options Exercisable    
US Dollar [Member] | $1.55 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 1.55    
Options Outstanding, Number Outstanding 50,349    
Weighted average remaining contractual life of outstanding share options 11 months 15 days    
Options Outstanding, Options Exercisable 50,349    
US Dollar [Member] | $2.20 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 2.20    
Options Outstanding, Number Outstanding 2,165    
Weighted average remaining contractual life of outstanding share options 5 years 6 months 18 days    
Options Outstanding, Options Exercisable 2,165    
US Dollar [Member] | $3.72 [member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 3.75    
Options Outstanding, Number Outstanding 40,000    
Weighted average remaining contractual life of outstanding share options 1 year 8 months 9 days    
Options Outstanding, Options Exercisable