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Note 11 - Derivative Financial Instruments (Tables)
 3 Months Ended
Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments [Table Text Block]
   
At or for the three months ended March 31, 2015
 
   
Notional
Amount
   
Net Carrying (1)
Value
 
   
(In thousands)
 
Interest rate saps (non-hedge)
  $ 36,321     $ (3,492 )
Interest rate swaps (hedge)
    10,273       (626 )
Interest rate swaps (hedge)
    4,110       6  
Total derivatives
  $ 50,704     $ (4,112 )
   
At or for the year ended December 31, 2014
 
   
Notional
Amount
   
Net Carrying
Value (1)
 
   
(In thousands)
 
Interest rate swaps (non-hedge)
  $ 36,321     $ (2,239 )
Interest rate swaps (hedge)
    4,131       84  
Interest rate swaps (hedge)
    10,340       (410 )
Total derivatives
  $ 50,792     $ (2,565 )
Derivative Instruments, Gain (Loss) [Table Text Block]
   
For the three months ended
March 31,
 
(In thousands)
 
2015
   
2014
 
Financial Derivatives:
           
Interest rate swaps (non-hedge)
  $ (1,254 )   $ (1,014 )
Interest rate swaps (hedge)
    (54 )     (28 )
Net loss (1)
  $ (1,308 )   $ (1,042 )