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Basis of Presentation - Intangibles (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Sep. 30, 2012
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, finite and indefinite lived, gross | $ 6,141 |  | $ 6,151 |
Accumulated amortization | (2,394) |  | (2,055) |
Intangible assets, finite and indefinite lived, net | 3,747 |  | 4,096 |
Noncompete Agreements [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, finite and indefinite lived, gross | 1,056 |  | 1,057 |
Noncompete Agreements [Member] | Minimum [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Useful Life (in years) | 4 years |  |  |
Noncompete Agreements [Member] | Maximum [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Useful Life (in years) | 8 years |  |  |
Customer Lists [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Useful Life (in years) | 10 years |  |  |
Intangible assets, finite and indefinite lived, gross | 825 |  | 828 |
Patented Technology [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, finite and indefinite lived, gross | 2,336 |  | 2,341 |
Patented Technology [Member] | Minimum [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Useful Life (in years) | 5 years |  |  |
Patented Technology [Member] | Maximum [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Useful Life (in years) | 10 years |  |  |
In Process Research And Development [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, finite and indefinite lived, gross | 1,600 | [1] | 1,600 | [1]
Other Intangible Assets [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, finite and indefinite lived, gross | $ 324 |  | $ 325 |
Other Intangible Assets [Member] | Minimum [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Useful Life (in years) | 2 years |  |  |
Other Intangible Assets [Member] | Maximum [Member] |  |  |  |
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Useful Life (in years) | 10 years |  |  |
[1] | The in-process research and development will be amortized over its useful life when it has reached technological feasibility.

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- Definition Intangible Assets, Finite and Indefinite Lived, Gross (Excluding Goodwill) + References No definition available. + Details
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- Definition Intangible Assets, Finite and Indefinite Lived, Net (Excluding Goodwill) + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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