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Income Taxes (Components of income before income tax) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Results of Operations by Geographical Areas [Line Items]
Income (loss) before provision for income taxes	$ 5,525	$ 9,830	$ (5,450)
Domestic
Results of Operations by Geographical Areas [Line Items]
Income (loss) before provision for income taxes	7,845	1,900	2,100
Foreign
Results of Operations by Geographical Areas [Line Items]
Income (loss) before provision for income taxes	$ (2,320)	$ 7,930	$ (7,550)

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[Line Items] for Results of Operations by Geographical Areas [Table]

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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