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Note 12 - Shareholders' Equity (Details) - USD ($)
$ / shares in Units, $ in Millions
Oct. 15, 2010
Dec. 31, 2015
Dec. 31, 2014
Stockholders' Equity Note [Abstract]      
Stock Issued During Period, Shares, Acquisitions 3,360,000    
Stock Issued During Period at Purchase Price Per Share Acquisition (in Dollars per share) $ 15.00    
Stock Issued During Period, Value, Acquisitions (in Dollars) $ 50.4    
Percentage of Shares Sold of Common Stock Issued and Outstanding 87.60%    
Common Stock, Par or Stated Value Per Share (in Dollars per share) $ 0.01 $ 0.01 $ 0.01
Common Stock, Shares Authorized 100,000,000 100,000,000 100,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number   0