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Note 9 - Income Taxes (Details Textual) - USD ($)	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Tax Expense (Benefit), Total	$ 684,000	$ 123,000
Effective Income Tax Rate Reconciliation, Percent, Total	17.80%	19.70%
Unrecognized Tax Benefits, Ending Balance	$ 0

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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