Note 7 - Other Assets - Summary of Other Assets (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Offering costs	$ 180,456
Clinical studies deposits		160,400
Other	52,219	21,087
Total	$ 232,675	$ 181,487

Amount of noncurrent assets classified as other.

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 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_OtherAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant