Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Accumulated other comprehensive income (loss)	$ (225)	$ 170	$ (156)
Other comprehensive income before reclassifications	(820)	(394)	326
Amounts reclassified from accumulated other comprehensive income	(19)	(1)
Net period other comprehensive income (loss)	(839)	(395)	326
Accumulated other comprehensive income (loss)	(1,064)	(225)	170
Unrealized Gains and Losses on Available-for-Sale Securities
Accumulated other comprehensive income (loss)	30	(12)
Other comprehensive income before reclassifications	(11)	43	(12)
Amounts reclassified from accumulated other comprehensive income	(19)	(1)
Net period other comprehensive income (loss)	(30)	42	(12)
Accumulated other comprehensive income (loss)		30	(12)
Foreign Currency Translation Adjustments
Accumulated other comprehensive income (loss)	(255)	182	(156)
Other comprehensive income before reclassifications	(809)	(437)	338
Amounts reclassified from accumulated other comprehensive income
Net period other comprehensive income (loss)	(809)	(437)	338
Accumulated other comprehensive income (loss)	$ (1,064)	$ (255)	$ 182

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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

-Publisher FASB

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 31

-Article 5

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-Name FASB Staff Position (FSP)

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

+ Details

- Definition

Net of tax amount of other comprehensive income (loss) attributable to the parent entity.

+ References

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

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-Name Accounting Research Bulletin (ARB)

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+ Details