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

Share Capital - Summary of Options Outstanding (Detail)

v3.19.3
Share Capital - Summary of Options Outstanding (Detail)
 6 Months Ended 12 Months Ended
Jun. 30, 2019
USD ($)
Jun. 30, 2019
CAD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CAD ($)
Canadian Dollar [Member]        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Number of Stock Options, Balance Beginning [1] 875,433 875,433 591,609 591,609
Number of Stock Options, Granted [1] 10,000 10,000 322,517 322,517
Number of Stock Options, Expired/Forfeited [1] (41,745) (41,745) (38,693) (38,693)
Number of Stock Options, Balance Ending [1] 843,688 843,688 875,433 875,433
Weighted-average Exercise Price, Balance Beginning   $ 18.20   $ 21.30
Weighted-average Exercise Price, Granted   4.54   13.51
Weighted-average Exercise Price, Expired/Forfeited   31.29   24.90
Weighted-average Exercise Price, Balance Ending   $ 6.23   $ 18.20
US Dollar [Member]        
Disclosure of terms and conditions of share-based payment arrangement [line items]        
Number of Stock Options, Balance Beginning 50,349 50,349    
Number of Stock Options, Granted [2] 293,000 293,000 50,349 50,349
Number of Stock Options, Balance Ending 343,349 343,349 50,349 50,349
Weighted-average Exercise Price, Balance Beginning $ 1.55      
Weighted-average Exercise Price, Granted [2] 3.44   $ 1.55  
Weighted-average Exercise Price, Balance Ending $ 3.17   $ 1.55  
[1] After giving consideration for 30:1 share consolidation effected June 2018.
[2] Options granted in the period ending June 30, 2019 will vest in accordance with vesting schedules and milestones over a period up to 7 years.