Note 5 - Income Loss Per Share (Details Textual) - shares	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,700,000	1,700,000
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,148,000	2,211,650
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		100,000