Quarterly report pursuant to Section 13 or 15(d)

Share Capital - Summary Of Option Activity (Detail)

v3.23.1
Share Capital - Summary Of Option Activity (Detail) - $ / shares
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average contractual life [1] 7 years 9 months 10 days 7 years 9 months 10 days
Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning balance outstanding 7,877 [1] 10,504
Granted units   7,877
Cancellations units   (7,111)
Forfeitures units   (3,152)
Expirations units   (241)
Ending balance outstanding [1] 7,877 7,877
Weighted average exercise price beginning balance [2] $ 0.05 [1] $ 3.65
Weighted average exercise price granted [2]   0.05
Weighted average exercise price Cancellations [2]   3.47
Weighted average exercise price Forfeitures [2]   4.32
Weighted average exercise price Expirations [2]   0.89
Weighted average exercise price ending balance [1],[2] $ 0.05 $ 0.05
[1] As of March 31, 2023, 6,564 of the stock options outstanding were exercisable (December 31, 2022 - 5,252).
[2] The Original Awards are denominated in Canadian dollars. Exercise prices have been converted to U.S. dollar equivalents using an exchange rate of CAD$1.353 to $1.00 as of March 31, 2023.