XML 122 R107.htm IDEA: XBRL DOCUMENT v3.20.4
Derivative Warrant Liabilities - Secured Convertible Note Warrants - Additional Information (Details)
$ / shares in Units, $ in Millions, $ in Millions
 2 Months Ended
Sep. 30, 2020
CAD ($)
Jun. 05, 2020
CAD ($)
$ / shares
Jun. 05, 2020
USD ($)
Dec. 31, 2020
CAD ($)
shares
$ / shares
Disclosure Of Detailed Information About Derivative Warrant Liability [Line Items]        
Indebtedness under unsecured convertible notes | $     $ 3.0  
Issuance of common shares       296,700,000
Warrants outstanding       2,080,000
Top of Range        
Disclosure Of Detailed Information About Derivative Warrant Liability [Line Items]        
Indebtedness under unsecured convertible notes | $ $ 3.0 $ 3.0    
Secured Convertible Note Warrants        
Disclosure Of Detailed Information About Derivative Warrant Liability [Line Items]        
Warrants description   The Secured Convertible Note Warrants were issued on June 5, 2020 and expired 36 months from the date of issuance. The Secured Convertible Note Warrants were issued on June 5, 2020 and expired 36 months from the date of issuance.  
Warrants expiration period   36 months 36 months  
Warrants exercised       35,000,000
Weighted average exercise price of warrants | $ / shares       $ 0.1766
Issuance of common shares       35,000,000
Gross proceeds from exercise of warrants | $       $ 8.0
Warrants outstanding      
Secured Convertible Note Warrants | Bottom of Range        
Disclosure Of Detailed Information About Derivative Warrant Liability [Line Items]        
Weighted average price of common shares | $ / shares   $ 2.00