Inventory (Components Of Inventory) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Sep. 30, 2018
Inventory Disclosure [Abstract]
Raw Materials - corn	$ 4,941	$ 4,095
Supplies and Chemicals	5,254	4,747
Work in Process	1,702	1,421
Finished Goods	5,381	3,263
Inventory	$ 17,278	$ 13,526

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of other supplies used within the manufacturing or production process expected to be consumed within one year or operating cycle, if longer.

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