Note 9 - Fair Value Measurement - Unrealized Gain or Loss Included in Earnings (Details) - USD ($)	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015
The net amount of gains/(losses) for the period included in earnings attributable to the unrealized gain/(losses) from changes in derivative liabilities at the reporting date	$ (2,458,836)	$ 4,072,798
Total unrealized gains/(losses) included in earnings	$ (2,458,836)	$ 4,072,798

Amount of gain (loss) recognized in the income statement of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration