Commitment and Contingencies - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Accrued workers compensation insurance	$ 923	$ 945

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

No definition available.

Name:	us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant