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Convertible debentures (Details) - USD ($)				12 Months Ended
	May 31, 2024	Dec. 29, 2023	Oct. 21, 2022	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Convertible debentures
Aggregate principal amount					$ 7,780,000
Loss on warrants settlement					1,928,681
Issuance cost incurred				$ 0	1,560,000	$ 300,000
Amortization of debentures discount				$ 1,167,996	1,125,067	$ 357,995
Convertible Debt Issued on December 29, 2023
Convertible debentures
Aggregate principal amount		$ 6,740,000
Warrants to purchase ordinary shares		1,070,719
Purchase price of warrants		$ 6,127,334
Debt issuance costs		612,666
Loss on warrants settlement		4,399,645
Fair value of interest		6,127,334
Proceeds from issuance of debt		3,566,476
Proceeds from issuance of warrants		$ 2,560,858
Conversion price (in dollars per share)		$ 15
Prepayments in cash					$ 960,000
Number of shares issued upon conversion				35,921,082
Maturity date		36 months
Convertible Debt Issued on October 21, 2022
Convertible debentures
Aggregate principal amount			$ 2,100,000
Interest rate (as a percent)			116.00%
Purchase price of warrants			$ 1,974,000
Debt issuance costs			256,000
Loss on warrants settlement			1,007,799
Fair value of interest			1,872,536
Proceeds from issuance of debt			1,198,804
Proceeds from issuance of warrants			$ 645,196
Conversion price (in dollars per share)			$ 0.33		$ 1.8
Weighted average interest rate			115.00%
Prepayments in cash					$ 900,000
Remaining principle balance					$ 1,200,000
Number of shares issued upon conversion					680,183
Convertible Debenture and Exchange note issued on May 31, 2024
Convertible debentures
Aggregate principal amount	$ 2,000,000
Interest rate (as a percent)	10.00%
Number of shares issued upon conversion				6,677,149
Maturity date	24 months
Cancellation of warrants	500,000
Cancelled warrants	$ 71,319
Average price of ordinary share	95.00%
Ordinary shares | Convertible Debt Issued on December 29, 2023
Convertible debentures
Conversion price (in dollars per share)		$ 0.7186
Weighted average interest rate		20.00%
Ordinary shares | Convertible Debt Issued on October 21, 2022
Convertible debentures
Warrants to purchase ordinary shares			5,925,599
Conversion price (in dollars per share)			$ 0.06
Weighted average interest rate			20.00%
Minimum | Convertible Debt Issued on December 29, 2023
Convertible debentures
Interest rate		13.50%
Minimum | Convertible Debt Issued on October 21, 2022
Convertible debentures
Interest rate			12.00%
Minimum | Convertible Debenture and Exchange note issued on May 31, 2024
Convertible debentures
Conversion price (in dollars per share)	$ 0.76
Maximum | Convertible Debt Issued on October 21, 2022
Convertible debentures
Warrants to purchase ordinary shares			5,108,275

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- Definition

Percentage on lowest volume weighted average price per share of ordinary shares used in calculation of determining price per share of the conversion feature embedded in the debt instrument.

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The period of right to convert after the date of issuance of the debt instrument.

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Number of cancelled derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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