Note 11 - Convertible Notes - Convertible Notes (Details) (Parentheticals)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Conversion Rights	4,718,113
Convertible Debt [Member]
Conversion Rights	3,126,417
Convertible Payable 1 [Member] \| Convertible Debt [Member]
Interest Rate	7.00%
Conversion Rights	335,833
Convertible Payable 2 [Member] \| Convertible Debt [Member]
Interest Rate	5.00%	5.00%
Conversion Rights	2,790,584	2,790,584
Maturing Dates Range	Between April 2018 and December 2019	Between April 2018 and December 2019

The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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 210.5-02.22(a)(5))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21521-112644

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration