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Income Taxes (Income Taxes) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2018
Income Tax Disclosure [Abstract]      
United States $ 3,756 $ 7,981 $ (2,427)
International 3,707 3,164 5,677
Income before income taxes $ 7,463 $ 11,145 $ 3,250