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Note 8 - Stockholders' Equity - Common Stock Reserved for Future Issuance (Details)	Sep. 30, 2016 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)	30,460,662
Warrant [Member]
Common Stock, Reserved for Future Issuance (in shares)	40,620,237
Employee Stock Option [Member]
Common Stock, Reserved for Future Issuance (in shares)	4,722,529
Common Stock, Reserved for Future Issuance (in shares)	76,089,142

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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