Note 2 - Summary of Changes in Fair Value of Company's Preferred Warrant Liability (Details) - Fair Value, Inputs, Level 3 [Member] - Warrant [Member]	3 Months Ended
Mar. 31, 2016 USD ($)
Balance	$ 1,035,137
Changes in estimated fair value	(241,777)
Balance	$ 793,360

Amount of increase (decrease) of financial instrument classified as a liability 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)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Period Type:	duration