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Inventory (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014
Inventory Disclosure [Abstract]
Raw Materials	$ 1,639us-gaap_InventoryRawMaterials	$ 1,978us-gaap_InventoryRawMaterials
Work in Process	2,220us-gaap_InventoryWorkInProcess	2,618us-gaap_InventoryWorkInProcess
Finished Goods	1,860us-gaap_InventoryFinishedGoods	1,819us-gaap_InventoryFinishedGoods
Parts and Supplies	7,098us-gaap_OtherInventory	9,633us-gaap_OtherInventory
Inventory, Net	$ 12,817us-gaap_InventoryNet	$ 16,048us-gaap_InventoryNet

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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 SEC

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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 inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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