Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Net Income Per Share (Details Textual)

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Note 2 - Net Income Per Share (Details Textual) - shares
3 Months Ended 9 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 72,000 0 72,000 0