Note 9 - Per Share Data (Details) (Reverse Stock Split [Member])	1 Months Ended	3 Months Ended
Feb. 28, 2015	Mar. 31, 2015
Reverse Stock Split [Member]
Note 9 - Per Share Data (Details) [Line Items]
Stockholders' Equity Note, Stock Split, Conversion Ratio	10	10

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Stock Split

-URI http://asc.fasb.org/extlink&oid=6525746

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

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