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Income Taxes (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Sep. 30, 2021
Income Tax Disclosure [Abstract]          
Income tax expense (benefit) $ (979,000) $ 1,680,000 $ (493,000) $ 2,874,000  
Effective tax rate 1.60% (4.50%) 0.20% (4.00%)  
Unrecognized tax benefits $ 0   $ 0   $ 0