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Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
InventoryDisclosureAbstract
Raw Materials	$ 4,453	$ 4,104
Work in Process	5,168	3,731
Finished Goods	1,746	1,692
Parts and Supplies	9,599	7,396
Inventory, Net, Total	$ 20,966	$ 16,923

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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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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-Topic 210
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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 inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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