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

SHARE CAPITAL - Additional Information (Detail)

v3.21.2
SHARE CAPITAL - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Feb. 24, 2021
Jan. 26, 2021
Dec. 23, 2019
Sep. 30, 2021
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Disclosure of classes of share capital [line items]              
Shares issued       111,127,690 111,127,690   83,184,843
Proceeds from issuance shares         $ 2,709 $ 23,490  
Remaining shares held under purchase commitment       8,632,824 8,632,824    
Sale of offering units 9,585,250 7,419,354          
Offering price per share $ 2.40 $ 1.55          
Gross proceeds from offerings $ 23,005 $ 11,500          
Net issuance costs $ 21,093 $ 10,231       488  
Exercise price per share $ 3.00 $ 2.00          
Broker warrants to purchase common stock 670,967 518,234          
Common stock price per share $ 3.00 $ 1.9375          
Aspire Agreement [Member]              
Disclosure of classes of share capital [line items]              
Shares issued       6,981,048 6,981,048    
Aspire Capital Fund LLC [Member]              
Disclosure of classes of share capital [line items]              
Shares issued     9,729,777 200,000 200,000    
Proceeds from issuance shares     $ 35,000 $ 329 $ 5,200 $ 2,700  
Remaining shares held under purchase commitment       2,748,729 2,748,729    
Amount for shares remaining under purchase agreement       $ 29,800 $ 29,800