Note 9 - Convertible Notes - Convertible Notes (Details) (Parentheticals)	3 Months Ended	12 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Convertible Debt [Member]
Conversion Rights	2,423,574
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	2,087,741	2,087,741
Maturing Dates Range	Between May 2018 and February 2020	Between May 2018 and February 2020

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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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
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-Section S99
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