CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
OPERATING EXPENSES
Research and development	$ 24,415,246	$ 24,258,989
Financing costs (Note 7)	13,746	22,220
General and administration	12,544,760	12,884,581
Total operating expenses	(36,973,752)	(37,165,790)
Foreign exchange	1,687	(16,041)
Interest and other income	1,736,641	234,997
Derivative liability gain (Note 8)	20,352	107,024
Loss for the year before taxes	(35,215,072)	(36,839,810)
Income tax recovery (Note 11)	111,821	34,349
Net loss for the year	(35,103,251)	(36,805,461)
OTHER COMPREHENSIVE LOSS
Unrealized loss on short-term investments (Note 4)	(58,666)	0
Loss and comprehensive loss for the year	$ (35,161,917)	$ (36,805,461)
Earnings Per Share [Abstract]
Basic loss per common share	$ (0.80)	$ (0.96)
Diluted loss per common share	$ (0.80)	$ (0.96)
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Weighted average number of common shares outstanding - Basic	44,038,241	38,480,378
Weighted average number of common shares outstanding -Diluted	44,038,241	38,480,378