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Schedule of Uncertain Tax Positions (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Income Tax Disclosure [Abstract]      
Balance at beginning of year $ 165
Additions for tax positions of prior years
Decrease related to settlements with taxing authorities
Reduction due to lapse from closed examination (165)
Balance at end of year