Share capital (Narrative) (Details)						1 Months Ended		3 Months Ended			9 Months Ended
	Jul. 14, 2025 USD ($) Percentage $ / shares	Jun. 02, 2025 USD ($) $ / shares shares	Mar. 10, 2025 USD ($) $ / shares shares	Feb. 10, 2025 USD ($) $ / shares shares	May 03, 2024 USD ($)	Oct. 28, 2024 shares	Jun. 28, 2024 USD ($) $ / shares shares	Sep. 30, 2025 USD ($) shares	Mar. 31, 2025 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) $ / shares shares	Sep. 30, 2024 USD ($)	Jul. 30, 2024 $ / shares
Share Capital Note Disclosure [Line Items]
Reverse share split ratio						1-for-2
Issuance of common shares upon conversion of preferred shares (Shares) | shares						10,846,721
Issuance of common shares upon conversion of debt										$ 5,210,962
Proceeds from issuance of common stock											$ 9,790,015	$ 5,470,000
Amount of common shares issued									$ 3,688,981
Proceeds from warrants exercised											$ 4,729,398	0
Number of options exercised | shares											145,000
Exercise price of options exercised | $ / shares											$ 1.11
Share issuance cost											$ 584,361	$ 0
Convertible Promissory Notes [Member]
Share Capital Note Disclosure [Line Items]
Principal amount of convertible promissory notes					$ 5,172,500
Interest rate of convertible promissory notes					10.00%
Terms of conversion											(i) a 20% discount to the initial public offering price and (ii) $4.00; or if there had been a change of control, at a conversion price of $4.00 per common share. On or after January 1, 2025, conversion would be at the option of the holder at a conversion price of $4.00 per common share. The Company had the option to redeem all or any portion of the convertible notes at a price equal to 100% of the outstanding principal plus accrued and unpaid interest up to but not including the date of redemption. In the event of a change of control, the Company would offer to repurchase the convertible notes at a price equal to 101% of the principal plus accrued and unpaid interest up to but not including the date of repurchase.
Conversion price | $ / shares													$ 4
Cash paid for interest							$ 40,563
Accrued interest converted into common shares							38,462
Issuance of common shares upon conversion of debt							$ 5,172,500
Issuance of common shares upon conversion of debt (Shares) | shares							1,308,798
Private Placement [Member]
Share Capital Note Disclosure [Line Items]
Number of common shares issued in connection with a private placement | shares							1,461,250
Value of common shares issued in connection with a private placement							$ 5,845,000
Common shares, price per share | $ / shares							$ 4
Share issuance cost							$ 375,000
Regulation A Offering [Member]
Share Capital Note Disclosure [Line Items]
Proceeds from offering			$ 4,172,000
Number of units issued | shares			1,490,000
Common shares, price per share | $ / shares			$ 2.8
Exercise price of warrants granted | $ / shares			$ 2.8
Number of warrants exercised | shares								1,340,000
Proceeds from warrants exercised								$ 3,752,000			$ 4,126,639
Warrant term			5 years
Share issuance cost			$ 483,020
Fair value per share | $ / shares			$ 3.4
Fair value per warrant | $ / shares			$ 2.63
Number of warrants exercised for cash | shares											1,473,800
Regulation A Offering [Member] | Series A Warrants [Member]
Share Capital Note Disclosure [Line Items]
Number of warrants exercised for cash | shares											1,340,000
Regulation A Offering [Member] | Series B Warrants [Member]
Share Capital Note Disclosure [Line Items]
Number of warrants exercised for cash | shares											1,340,000
Regulation A Offering [Member] | Series A and B Warrants Granted [Member]
Share Capital Note Disclosure [Line Items]
Exercise price of warrants granted | $ / shares	$ 3.75
Warrant term	5 years
Fair value of warrants granted	$ 4,954,518
Regulation A Offering [Member] | Series A and B Warrants Granted [Member] | Expected volatility [Member]
Share Capital Note Disclosure [Line Items]
Measurement input | Percentage	73.19
Regulation A Offering [Member] | Series A and B Warrants Granted [Member] | Risk-free interest rate [Member]
Share Capital Note Disclosure [Line Items]
Measurement input | Percentage	3.995
Regulation A Offering [Member] | Series A and B Warrants Granted [Member] | Expected warrant life [Member]
Share Capital Note Disclosure [Line Items]
Measurement input	5
Regulation A Offering [Member] | Series A and B Warrants Granted [Member] | Share price [Member]
Share Capital Note Disclosure [Line Items]
Measurement input	3.13
June 2025 Public Offering [Member]
Share Capital Note Disclosure [Line Items]
Proceeds from offering		$ 7,006,000
Number of units issued | shares		2,260,000
Common shares, price per share | $ / shares		$ 3.1
Exercise price of warrants granted | $ / shares		$ 3.1
Warrant term		5 years
Share issuance cost		$ 809,606
Fair value per share | $ / shares		$ 2.63
Fair value per warrant | $ / shares		$ 1.92
Initial Public Offering [Member]
Share Capital Note Disclosure [Line Items]
Number of warrants exercised | shares											129,905
Proceeds from warrants exercised											$ 602,759
Standby Equity Purchase Agreement (the "SEPA") [Member]
Share Capital Note Disclosure [Line Items]
Proceeds from issuance of common stock				$ 15,000,000
Common shares issued | shares				105,840
Common shares, price per share | $ / shares				$ 2.83
Share issuance cost											653,504
Share price as percentage of market price				97.00%
Payment of structuring fee				$ 25,000
Legal fees				$ 391,898
Standby Equity Purchase Agreement (the "SEPA") [Member] | YA II PN Ltd (Yorkville) [Member]
Share Capital Note Disclosure [Line Items]
Proceeds from issuance of common stock											$ 5,097,005
Common shares issued | shares											2,152,672
Amount of common shares issued											$ 5,254,726
Proceeds from outstanding debenture and interest											$ 2,481,635