Annual report pursuant to Section 13 and 15(d)

Inventories - Narrative (Details)

v3.22.2.2
Inventories - Narrative (Details) - USD ($)
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Inventory [Line Items]      
Casualty loss due to Hurricane $ 14,900,000    
Proceeds from federal relief grants 1,123,000 $ 4,299,000 $ 4,629,000
Year-End Adjustment      
Inventory [Line Items]      
Inventory casualty loss $ 6,676,000