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Income Taxes - Schedule of Income Tax Expense (Benefit) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Income Tax Disclosure [Abstract]      
Current Federal $ 3,005 $ 2,438 $ 2,989
Current State and local 1,037 1,219 1,097
Total current income tax expense 4,042 3,657 4,086
Deferred Federal 913 (8,096) 1,545
Deferred State and local (92) 1,321 728
Total deferred income tax expense (benefit) 821 (6,775) 2,273
Total income tax expense (benefit) $ 4,863 $ (3,118) $ 6,359