Note 7 - Earnings Per Share (Details Textual) - shares	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	1,850,000	750,000
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	9,638,650	11,238,650
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	100,000	256,667