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Note 11 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Jun. 30, 2015	Nov. 30, 2013	Jul. 31, 2013
Share Buyback Program [Member]
Stock Repurchase Program, Authorized Amount		$ 1	$ 3
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date	Feb. 04, 2016
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	1,627,945
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 2.67
Stock Repurchased and Retired During Period, Shares	404,495

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 235



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.4-08.(i)(4))



-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 235



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.4-08.(i)(2))



-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (a)(2)



-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased and retired during the period.

+ References

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



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-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 04



-Article 3



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-Name Regulation S-X (SX)



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-Section 02



-Paragraph 29, 30



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