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Income Taxes - Income Tax (Provision) Benefit (Detail) - USD ($) $ in Thousands	3 Months Ended						12 Months Ended
	Sep. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Federal—current							$ (129)	$ (84)
Federal—deferred								621
State—current							(16)	(10)	$ (2)
State—deferred								13
Foreign—current							146	3
Income tax (provision) benefit	$ 96	$ (79)	$ (16)	$ (32)	$ 578	$ (3)	$ 1	$ 543	$ (2)

X

- Definition

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h))
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