INCOME TAXES (Reconciliation of Income Taxes at Statutory Rates) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Loss for the year before income tax	$ (35,215,072)	$ (36,839,810)
Tax recovery at statutory income tax rates	(9,509,000)	(9,947,000)
Non-deductible share-based payments	963,000	1,575,000
Other permanent differences including foreign exchange	(25,000)	(49,000)
Share issue costs		(2,492,000)
Change in statutory, foreign tax, foreign exchange rates and other	1,288,000	1,260,000
Adjustment to prior years provision versus statutory tax returns and expiry of non-capital losses	165,000	(725,000)
Change in valuation allowance	7,007,000	10,344,000
Total income tax expense	(111,821)	(34,349)
ESSA Pharmaceuticals Corp [Member]
Total income tax expense	$ (111,000)	$ (34,000)