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CONDENSED CONSOLIDATED INTERIM STATEMENTS OF CASH FLOWS - USD ($)
 6 Months Ended
Mar. 31, 2023
Mar. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES    
Loss for the period $ (13,802,121) $ (19,952,523)
Items not affecting cash and cash equivalents:    
Amortization of right-of-use asset 60,894 60,893
Amortization/(Accretion) of premiums/discounts on short-term investments, net (279,405) 65,060
Accretion of lease liability 4,294 7,410
Derivative liability gain 0 (18,423)
Interest income (1,542,218) (157,464)
Unrealized foreign exchange 111 19,520
Share-based payments 3,000,699 4,363,444
Changes in non-cash working capital items:    
Receivables (2,572) 476,062
Prepaids 749,143 1,117,418
Accounts payable and accrued liabilities (157,759) (186,188)
Net cash used in operating activities (11,968,934) (14,204,791)
CASH FLOWS FROM INVESTING ACTIVITIES    
Purchase of short-term investments (178,310,466) (104,817,397)
Proceeds from short-term investments sold 175,939,115 67,028,803
Interest from short-term investments 1,581,278 162,789
Net cash used in investing activities (790,073) (37,625,805)
CASH FLOWS FROM FINANCING ACTIVITIES    
Options exercised 0 319,832
Shares purchased through employee share purchase plan 50,291 27,360
Lease payments (69,278) (64,746)
Net cash provided by financing activities (18,987) 282,446
Effect of foreign exchange on cash and cash equivalents 2,196 (41,044)
Change in cash and cash equivalents for the period (12,775,798) (51,589,194)
Cash and cash equivalents, beginning of period 57,076,475 137,825,024
Cash and cash equivalents, end of period $ 44,300,677 $ 86,235,830