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Note 8 - Common Stock - Common Stock Reserved for Future Issuance (Details)	Sep. 30, 2015 shares
Series B Convertible Preferred Stock [Member]
Common stock, reserved for future issuance (in shares)	285,714
Series C Convertible Preferred Stock [Member]
Common stock, reserved for future issuance (in shares)	21,126,760
Warrant [Member]
Common stock, reserved for future issuance (in shares)	56,442,157
Employee Stock Option [Member]
Common stock, reserved for future issuance (in shares)	1,197,529
Common stock, reserved for future issuance (in shares)	79,052,160

X

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

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- Details

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X

- Details

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X

- Details

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