Goodwill and Other Intangible Assets, Net (Details) (USD $)	6 Months Ended	0 Months Ended
Mar. 31, 2015	Jan. 07, 2015
Goodwill and Other Intangible Assets, Net
Goodwill	$ 4,789,000us-gaap_Goodwill
Goodwill impairment charges	0us-gaap_GoodwillImpairmentLoss
Leveltek Processing, LLC
Goodwill and Other Intangible Assets, Net
Acquisition price		14,600,000
Goodwill		4,789,000
Customer relationships \| Leveltek Processing, LLC
Goodwill and Other Intangible Assets, Net
Customer relationships		$ 2,100,000

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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