Note 13 - Merger with Revett (Details) - Unaudited Pro Forma Financial Information (Parentheticals) - $ / shares	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 13 - Merger with Revett (Details) - Unaudited Pro Forma Financial Information (Parentheticals) [Line Items]
Diluted income (loss) per common share (in Dollars per share)	$ (0.07)	$ (0.05)	$ (0.05)	$ (0.02)

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration