SHARE-BASED COMPENSATION - Summary of Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Options
Number of options, beginning balance (in shares)	75,626,960	54,282,752
Number of options, granted (in shares)	68,294,666	35,161,000
Number of options, exercised (in shares)	0	(133,333)
Number of options, forfeited/ expired (in shares)	(52,218,860)	(13,683,459)
Number of options, ending balance (in shares)	91,702,766	75,626,960	54,282,752
Weighted Average Price (CAD$)
Weighted average price, beginning balance (in dollars per share)	$ 0.86	$ 0.94
Weighted average price, granted (in dollars per share)	0.20	0.68
Weighted average price, exercised (in dollars per share)		0.80
Weighted average price, forfeited/ expired (in dollars per share)	0.84	0.96
Weighted average price, ending balance (in dollars per share)	$ 0.34	$ 0.86	$ 0.94
Weighted Average Years
Weighted average years	3 years 9 months 10 days	3 years 5 months 15 days	2 years 11 months 19 days
Weighted average years, granted	4 years 6 months 7 days	4 years 9 months 18 days