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Schedule of Business Insurance Recoveries (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Impairment Effects on Earnings Per Share [Line Items]      
Insurance receivable $ 185 $ 191  
Business interruption 176 $ 484
Business interruption (176) (484)
Net property insurance claims (1,337) 596 (284)
Proceeds from business interruption insurance claims 106 384 100
Proceeds from property insurance claims 1,152 945 100
Accounts Receivable [Member]      
Impairment Effects on Earnings Per Share [Line Items]      
Insurance receivable $ 186 $ 191 $ 1,197