Acquired Intangible Assets (Detail) - Intangible assets (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2014	Sep. 30, 2013
Impaired Intangible Assets [Abstract]
Weighted Average Remaining Amortization Period	5 years
Gross	$ 1,173	$ 913
Accumulated Amortization	628	503
Net	545us-gaap_FiniteLivedIntangibleAssetsNet	410us-gaap_FiniteLivedIntangibleAssetsNet
Customer list
Impaired Intangible Assets [Abstract]
Weighted Average Remaining Amortization Period	5 years	5 years
Gross	910	820
Accumulated Amortization	500	410
Net	410	410
Non-Compete agreements
Impaired Intangible Assets [Abstract]
Weighted Average Remaining Amortization Period	0 years
Gross	93	93
Accumulated Amortization	93	93
Net	0	0
Developed Technology
Impaired Intangible Assets [Abstract]
Weighted Average Remaining Amortization Period	2 years
Gross	30
Accumulated Amortization	9
Net	21	0
Trade Name
Impaired Intangible Assets [Abstract]
Weighted Average Remaining Amortization Period	4 years
Gross	140
Accumulated Amortization	26
Net	$ 114	$ 0

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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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.

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