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Debt (Tables)
12 Months Ended
Sep. 30, 2021
Debt Disclosure [Abstract]  
Schedule of Debt [Table Text Block]
Year Ended September 30,
20212020
Revolving loan (long-term debt)$40,339 $12 
Debt issuance costs (1)
(656)— 
Other long-term debt63 205 
Total debt$39,746 $217