CONDENSED CONSOLIDATED INTERIM STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Loss for the period	$ (28,779,266)	$ (28,245,962)
Items not affecting cash and cash equivalents:
Amortization of right-of-use asset	91,340	80,665
Amortization of premiums/discounts on short-term investments, net	170,331	0
Accretion of lease liability	10,555	5,497
Derivative liability loss (gain)	(20,352)	470,132
Interest income	(450,580)	(42,719)
Unrealized foreign exchange	571	26,497
Share-based payments	5,954,444	6,652,613
Changes in non-cash working capital items:
Receivables	469,562	104,749
Prepaids	1,612,790	1,145,402
Accounts payable and accrued liabilities	92,390	1,770,800
Net cash used in operating activities	(20,848,215)	(18,032,326)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of short-term investments	(197,959,710)	(57,026,103)
Proceeds from short-term investments sold	148,254,180	22,000,000
Interest from short-term investments	326,270	11,337
Net cash used in investing activities	(49,379,260)	(35,014,766)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds on issuance of common shares	0	149,999,985
Share issuance costs	0	(9,229,451)
Options exercised	319,832	1,186,833
Warrants exercised	0	382
Shares purchased through employee share purchase plan	66,926	89,318
Lease payments	(99,384)	(69,637)
Net cash provided by financing activities	287,374	141,977,430
Effect of foreign exchange on cash and cash equivalents	(16,827)	(56,920)
Change in cash and cash equivalents for the period	(69,956,928)	88,873,418
Cash and cash equivalents, beginning of period	137,825,024	56,320,763
Cash and cash equivalents, end of period	$ 67,868,096	$ 145,194,181