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Note 6 - Income (Loss) Per Share (Details Textual) - shares
9 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Share-based Payment Arrangement, Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 1,050,000 150,000
Warrant [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 11,238,650 9,090,650
Convertible Debt Securities [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 100,000