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Income Taxes - Summary of Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Unrecognized tax benefits at the beginning of the year	$ 234	$ 224
Increases in tax positions for prior years	10	10
Unrecognized tax benefits at the ending of the year	$ 244	$ 234

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- References

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 15A



-Subparagraph (a)



-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Unrecognized Tax Benefit



-URI http://asc.fasb.org/extlink&oid=6527854

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 15A



-Subparagraph (a)(1)



-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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