Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

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

v3.20.2
SHARE CAPITAL - Summary of Weighted-Average Remaining Contractual Life and Weighted (Detail)
 9 Months Ended
Sep. 30, 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 2,362,163    
Weighted average remaining contractual life of outstanding share options 5 years 5 months 9 days    
Options Outstanding, Options Exercisable 705,886    
Canadian Dollar [Member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Options Outstanding, Number Outstanding 895,358 860,379 875,433
Weighted average remaining contractual life of outstanding share options 3 years 8 months 23 days    
Options Outstanding, Options Exercisable 629,081    
Canadian Dollar [Member] | $0.66 [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 3 months 29 days    
Options Outstanding, Options Exercisable 25,765    
Canadian 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 27,304    
Weighted average remaining contractual life of outstanding share options 7 years    
Options Outstanding, Options Exercisable 27,304    
Canadian Dollar [Member] | $1.27 [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 9 months 29 days    
Options Outstanding, Options Exercisable 22,425    
Canadian Dollar [Member] | $3.28 [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 11 months 1 day    
Options Outstanding, Options Exercisable 31,498    
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 $ 4.54    
Options Outstanding, Number Outstanding 735,999    
Weighted average remaining contractual life of outstanding share options 3 years 3 months 19 days    
Options Outstanding, Options Exercisable 469,722    
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 $ 9.00    
Options Outstanding, Number Outstanding 11,481    
Weighted average remaining contractual life of outstanding share options 4 years 9 months 7 days    
Options Outstanding, Options Exercisable 11,481    
Canadian Dollar [Member] | $9.69 [Member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 9.69    
Options Outstanding, Number Outstanding 1,105    
Weighted average remaining contractual life of outstanding share options 7 days    
Options Outstanding, Options Exercisable 1,105    
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 $ 11.70    
Options Outstanding, Number Outstanding 6,667    
Weighted average remaining contractual life of outstanding share options 2 months 8 days    
Options Outstanding, Options Exercisable 6,667    
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 $ 12.00    
Options Outstanding, Number Outstanding 1,948    
Weighted average remaining contractual life of outstanding share options 2 months 5 days    
Options Outstanding, Options Exercisable 1,948    
Canadian Dollar [Member] | $30.00 [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 10 months 25 days    
Options Outstanding, Options Exercisable 28,260    
Canadian Dollar [Member] | $30.60 [Member]      
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]      
Exercise prices/option | $ / shares $ 30.60    
Options Outstanding, Number Outstanding 2,096    
Weighted average remaining contractual life of outstanding share options 2 months 23 days    
Options Outstanding, Options Exercisable 2,096    
Canadian Dollar [Member] | $32.40 [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 3 months 29 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 1,466,805 854,042 50,349
Weighted average remaining contractual life of outstanding share options 6 years 5 months 27 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 7 years    
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 7 years    
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 9 months 29 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 1 year 2 months 19 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 1 year 9 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 $ 3.72    
Options Outstanding, Number Outstanding 40,000    
Weighted average remaining contractual life of outstanding share options 1 year 11 months 8 days    
Options Outstanding, Options Exercisable