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Acquired Intangible Assets (Detail) - Intangible assets - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015
Impaired Intangible Assets [Abstract] |  |
Gross | $ 1,173 | $ 1,173
Accumulated Amortization | 886 | 757
Net | $ 287 | $ 416
Customer list |  |
Impaired Intangible Assets [Abstract] |  |
Weighted Average Remaining Amortization Period | 3 years | 4 years
Gross | $ 910 | $ 910
Accumulated Amortization | 682 | 591
Net | $ 228 | $ 319
Non-compete agreements |  |
Impaired Intangible Assets [Abstract] |  |
Weighted Average Remaining Amortization Period | 0 years | 0 years
Gross | $ 93 | $ 93
Accumulated Amortization | 93 | 93
Net | $ 0 | $ 0
Developed technology |  |
Impaired Intangible Assets [Abstract] |  |
Weighted Average Remaining Amortization Period | 0 years | 1 year
Gross | $ 30 | $ 30
Accumulated Amortization | 29 | 19
Net | $ 1 | $ 11
Trade name |  |
Impaired Intangible Assets [Abstract] |  |
Weighted Average Remaining Amortization Period | 2 years | 3 years
Gross | $ 140 | $ 140
Accumulated Amortization | 82 | 54
Net | $ 58 | $ 86

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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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- 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=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before 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=26713463&loc=d3e16323-109275 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount after 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=26713463&loc=d3e16323-109275 + Details
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- Details
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- Details
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- Details
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- Details
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