Note 17 - Stockholder Rights Plan (Details) (Rights Agreement [Member], USD $)	12 Months Ended
Dec. 31, 2013
Rights Agreement [Member]
Note 17 - Stockholder Rights Plan (Details) [Line Items]
Investment Warrants, Exercise Price	$ 12.00
Sale of Stock, Price Per Share	$ 24.00

Exercise price of the warrants.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column A

Name:	invest_InvestmentWarrantsExercisePrice
Namespace Prefix:	invest_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration