Quarterly report pursuant to Section 13 or 15(d)

Share Capital - Summary of Warrants Outstanding (Detail)

v3.21.2
Share Capital - Summary of Warrants Outstanding (Detail) - $ / shares
Jun. 30, 2021
Dec. 31, 2020
Class of Warrant or Right [Line Items]    
Number outstanding 22,659 49,236
Weighted average exercise price $ 3.49 $ 4.06
Class Of Warrants Expire On 2021 [Member]    
Class of Warrant or Right [Line Items]    
Number outstanding 19 26,596
Weighted average exercise price $ 6.87 $ 4.37
Class Of Warrants Expire On 2022 [Member]    
Class of Warrant or Right [Line Items]    
Number outstanding 20,855 20,855
Weighted average exercise price $ 3.40 $ 3.62
Class Of Warrants Expire On 2023 [Member]    
Class of Warrant or Right [Line Items]    
Number outstanding 1,785 1,785
Weighted average exercise price $ 4.57 $ 4.57