Note 7 - Capital Shares - Schedule of Preferred Shares (Details) - USD ($)	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Balance	$ 1,981,155	$ 7,048,800
Issuance of common shares upon exercise of warrants	7,717,634	729,387
Balance	12,451,982	1,981,155
Preferred return on Series A-1 preferred shares	$ 0
Series B-1 Preferred Stock [Member] | Preferred Stock [Member]
Balance (in shares)	0
Balance	$ 0	0
Issuance of common shares upon exercise of warrants (in shares)	834
Issuance of common shares upon exercise of warrants	$ 8,340,000	$ 0
Series B-1 Preferred Shares issuance costs	171,937
Issuance costs	$ (171,937)
Balance (in shares)	834	0
Balance	$ 8,168,063	$ 0
Preferred return on Series A-1 preferred shares	$ 0
Series A-1 Preferred Stock [Member] | Preferred Stock [Member]
Balance (in shares)	0
Balance	$ 0
Issuance of common shares upon exercise of warrants (in shares)	150
Issuance of common shares upon exercise of warrants	$ 998,915
Series B-1 Preferred Shares issuance costs	43,220
Issuance costs	$ (43,220)
Balance (in shares)	150	0
Balance	$ 1,092,133	$ 0
Preferred return on Series A-1 preferred shares	$ 136,438