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Note 9 - Accumulated Other Comprehensive Income (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Three Months Ended March 31, 2013
 
   
Cash Flow Swaps
   
Available for Sale Securities
   
Total
 
Balance as of December 31, 2012
  $ (1,178 )   $ (578 )   $ (1,756 )
Changes in fair value
    118             118  
Amounts reclassified from accumulated other comprehensive loss
    53             53  
Net current period other comprehensive income
    171             171  
Balance at March 31, 2013
  $ (1,007 )   $ (578 )   $ (1,585 )
Reclassifications [Member]
 
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Three Months Ended
 
   
March 31, 2013
   
March 31, 2012
 
Losses on cash flow swaps to:
           
Interest expense
  $ 86     $ 105  
      86       105  
Income tax benefit
    (33 )     (40 )
Total reclassifications
  $ 53     $ 65