Note 9 - Convertible Notes - Convertible Notes (Details) (Parentheticals)	6 Months Ended	12 Months Ended
Jun. 30, 2018	Dec. 31, 2017
Convertible Debt [Member]
Conversion Rights	2,497,046
Convertible Payable 1 [Member] \| Convertible Debt [Member]
Interest Rate	7.00%	7.00%
Conversion Rights	335,833	335,833
Convertible Payable 2 [Member]
Interest Rate	5.00%	5.00%
Conversion Rights	2,150,463	2,150,463
Maturing Dates Range	Between September 2018 and June 2020	Between September 2018 and June 2020
Convertible Payable 3 [Member]
Interest Rate	5.00%	5.00%
Conversion Rights	10,750	10,750
Maturing Dates Range	May and June 2018	May and June 2018

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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