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Note 9 - Accumulated Other Comprehensive Income (Tables)
9 Months Ended
Sep. 30, 2015
Reclassifications [Member]  
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Three Months Ended
   
Nine Months Ended
 
   
September 30,
2015
   
September 30,
2014
   
September 30,
2015
   
September 30,
2014
 
Losses on cash flow swaps to:
                               
Interest expense
  $     $ (55 )   $ (55 )   $ (166 )
Income tax benefit
          21       21       65  
Total reclassifications
  $     $ (34 )   $ (34 )   $ (101 )
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Three Months Ended September 30, 2015
 
   
Cash Flow
Swaps
   
Available
for Sale
Securities
   
Total
 
Balance at June 30, 2015
  $ 0     $ (305 )   $ (305 )
Change in fair value
    0              
Income tax deferred
    0              
Balance at September 30, 2015
  $ 0     $ (305 )   $ (305 )
   
Three Months Ended September 30, 2014
 
   
Cash Flow
Swaps
   
Available
for Sale
Securities
   
Total
 
Balance at June 30, 2014
  $ (398 )   $ (374 )   $ (772 )
Change in fair value
    216             216  
Income tax deferred
    (84 )           (84 )
Balance at September 30, 2014
  $ (266 )   $ (374 )   $ (640 )
   
Nine Months Ended September 30, 2015
 
   
Cash Flow
Swaps
   
Available
for Sale
Securities
   
Total
 
Balance at December 31, 2014
  $ (143 )   $ (317 )   $ (460 )
Change in fair value
    235       19       254  
Income tax deferred
    (92 )     (7 )     (99 )
Balance at September 30, 2015
  $     $ (305 )   $ (305 )
   
Nine Months Ended September 30, 2014
 
   
Cash Flow
Swaps
   
Available
for Sale
Securities
   
Total
 
Balance at December 31, 2013
  $ (624 )   $ (578 )   $ (1,202 )
Change in fair value
    587       334       921  
Income tax deferred
    (229 )     (130 )     (359 )
Balance at September 30, 2014
  $ (266 )   $ (374 )   $ (640 )