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Note 10 - Fair Value Measurements (Details) - Assets and Liiabilities Measured at Fair Value on Recurring Basis (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Note 10 - Fair Value Measurements (Details) - Assets and Liiabilities Measured at Fair Value on Recurring Basis [Line Items]    
Derivative instruments $ 2,295 $ (328)
Preferred stock, trust preferred securities, and other equity instruments 95,308 104,271
Fair Value, Inputs, Level 1 [Member]
    
Note 10 - Fair Value Measurements (Details) - Assets and Liiabilities Measured at Fair Value on Recurring Basis [Line Items]    
Derivative instruments 2,295 (328)
Preferred stock, trust preferred securities, and other equity instruments $ 95,308 $ 104,271