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Composition of, and changes in goodwill (Details) - USD ($)	1 Months Ended		3 Months Ended	21 Months Ended	24 Months Ended	30 Months Ended	40 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2023	Apr. 30, 2023	Apr. 30, 2023
Indefinite-Lived Intangible Assets [Line Items]
	$ (412,999)	$ (2,826,918)
	9,088,550	17,012,832	$ 9,088,550	$ 17,012,832	$ 17,012,832	$ 17,012,832	$ 17,012,832
Goodwill [Member]
Indefinite-Lived Intangible Assets [Line Items]
				8,995,499	2,826,918	6,168,260	1,849,073
		(2,826,918)
	$ 9,088,550	$ 17,012,832	9,088,550	$ 17,012,832	$ 17,012,832	$ 17,012,832	$ 17,012,832
			$ (7,924,282)

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