CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Loss for the year	$ (35,103,251)	$ (36,805,461)
Items not affecting cash and cash equivalents:
Amortization of right-of-use asset	121,787	109,464
Amortization of premiums/discounts on short-term investments, net	69,653	0
Accretion of lease liability	13,305	9,570
Derivative liability gain	(20,352)	(107,024)
Interest income	(894,233)	(76,056)
Unrealized foreign exchange	845	31,192
Share-based payments	7,888,085	9,476,113
Changes in non-cash working capital items:
Receivables	482,801	(157,575)
Prepaids	366,256	(563,572)
Accounts payable and accrued liabilities	(1,629,065)	2,667,738
Net cash used in operating activities	(28,704,169)	(25,415,611)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of short-term investments	(296,012,498)	(57,026,103)
Proceeds from short-term investments sold	242,959,084	22,000,000
Interest from short-term investments	705,020	11,337
Net cash used in investing activities	(52,348,394)	(35,014,766)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds on issuance of common shares	0	149,999,985
Share issuance costs	0	(9,229,450)
Options exercised	319,832	1,186,833
Warrants exercised	0	596
Shares purchased through employee share purchase plan	66,926	133,071
Lease payments	(134,023)	(100,282)
Net cash provided by financing activities	252,735	141,990,753
Effect of foreign exchange on cash and cash equivalents	51,279	(56,115)
Change in cash and cash equivalents for the year	(80,748,549)	81,504,261
Cash and cash equivalents, beginning of year	137,825,024	56,320,763
Cash and cash equivalents, end of year	$ 57,076,475	$ 137,825,024