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Intangible Assets and Goodwill - Schedule of Changes in Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Finite-Lived Intangible Assets [Roll Forward]    
Beginning balance, Intangible asset $ 167 $ 202
Additions from acquisition 14,740 0
Amortization (117) (35)
Ending balance, Intangible asset $ 14,790 $ 167