Note 6 - Capital Shares - Schedule of Preferred Shares (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Balance	$ 15,539,598	$ 4,324,333	$ 1,981,155	$ 7,048,800
Stock Issued During Period, Value, New Issues		138,421	7,497,133	729,387
Preferred shares issuance costs		(38,565)	714,570	136,514
Balance	14,132,126	2,867,095	14,132,126	2,867,095
Preferred return on convertible preferred shares	0		$ 0
Series A-1 Preferred Stock [Member] | Preferred Stock [Member]
Balance (in shares)			0
Balance	$ 1,017,750	0	$ 0	0
Stock Issued During Period, Shares, New Issues			150
Stock Issued During Period, Value, New Issues			$ 998,915	0
Preferred shares issuance costs		0	$ (43,220)	0
Balance (in shares)	150		150
Balance	$ 1,054,735	0	$ 1,054,735	0
Preferred return on convertible preferred shares	36,985		$ 99,040
Series B-1 Preferred Stock [Member] | Preferred Stock [Member]
Balance (in shares)			0
Balance	$ 8,168,063	0	$ 0	0
Stock Issued During Period, Shares, New Issues			834
Stock Issued During Period, Value, New Issues			$ 8,340,000	0
Preferred shares issuance costs		0	$ (171,937)	0
Balance (in shares)	834		834
Balance	$ 8,168,063	$ 0	$ 8,168,063	$ 0
Preferred return on convertible preferred shares	$ 0		$ 0