Quarterly report pursuant to Section 13 or 15(d)

Inventories - Narrative (Details)

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Inventories - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Inventory Disclosure [Abstract]            
Proceeds from federal relief grants $ 175,000 $ 163,000 $ 1,123,000 $ 4,299,000 $ 4,299,000 $ 4,629,000
Insurance Expenses Incurred         $ 2,250,000