Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Income Tax Provision Accompanying Consolidated Statements of Operation
Income (loss) before income tax provision (benefit)	$ (6,025)	$ 8,356	$ 13,846
Less-U.S. state and local income tax provision	(13)	220	489
Income (loss) before U.S. and non-U.S. federal income tax provision	(6,012)	8,136	13,357
Income tax provision (benefit) at U.S. federal statutory rates	(2,104)	2,848	4,675
Tax effect of:
Foreign rate differential	334	74	73
Permanent items	438	(218)	(278)
Undistributed earnings of non-U.S. subsidiaries	(992)	(13)	(60)
Prior year tax adjustments	(23)	41	(181)
State and local income taxes	(113)	203	453
Federal tax credits	(92)	(178)	(766)
Change in valuation allowance	147	105	139
Changes in uncertain tax positions	58	(108)	57
Other	(97)	(1)	(24)
Income tax provision (benefit)	$ (2,444)	$ 2,753	$ 4,088

Income loss from continuing operations before domestic and foreign federal income tax provision.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Name Accounting Standards Codification
-Topic 740
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Amount of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit).

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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Amount of state and local current and deferred income tax expense (benefit) attributable to continuing operations.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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