Basis of Presentation - Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of weighted average cost inventory	50.00%	70.00%
Inventory, Net [Abstract]
Purchased parts and raw materials	$ 13,129	$ 8,797
Work-in-process	6,248	4,809
Finished goods	10,059	3,154
Inventory	$ 29,436	$ 16,760

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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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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Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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The percentage of weighted average cost inventory present at the reporting date when inventory is valued using different valuation methods.

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