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Common Stock Repurchase (Details) - USD ($)	1 Months Ended	12 Months Ended
	Oct. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	Oct. 28, 2014	Oct. 29, 2013
Shares repurchased, value		$ 2,339,000	$ 15,802,000	$ 14,058,000
October 2013 authorized repurchase program
Stock repurchase program, authorized amount						$ 20,000,000
Shares repurchased	287,787
Shares repurchased, value	$ 2,200,000
October 2014 authorized repurchase program
Stock repurchase program, authorized amount					$ 15,000,000
Equity Incentive Plans
Adjustment to satisfy withholding obligations		$ 100,000	$ 0	$ 0

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The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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Amount of stock repurchase plan authorized.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section 50



-Paragraph 2



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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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