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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

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- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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