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Note 3 - Outstanding Dilutive Securities (Details) - shares	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Convertible Debt Securities [Member]
Anti-dilutive securities (in shares)	2,115,407	58,534,765
Warrant [Member]
Anti-dilutive securities (in shares)	4,612,089
Employee Stock Option [Member]
Anti-dilutive securities (in shares)	17,879,116	11,095,734
Restricted Stock [Member]
Anti-dilutive securities (in shares)	122,725	184,093
Anti-dilutive securities (in shares)	24,729,337	69,814,592

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

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