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Note 13 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Income Tax Expense (Benefit) $ 26 $ 31 $ 18 $ 367
Effective Income Tax Rate Reconciliation, Percent       28.60%