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Note 10 - Changes in Accumulated Other Comprehensive (Loss) Income by Component (Tables)
 12 Months Ended
Dec. 31, 2014
Disclosure Text Block [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Twelve
Months Ended
December 31,
2014 (*)
 
   
Unrealized Gain
and Loss on Cash
Flow Hedges
 
Beginning Balance
  $ 117  
Other comprehensive loss before reclassification
    (355 )
Amounts reclassified from accumulated other comprehensive income
    137  
Net current-period other comprehensive loss
    (218 )
Ending Balance
  $ (101 )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
   
Amount Reclassified From
Accumulated Other Comprehensive
(Loss) Income (*)
     
   
Twelve Months Ended December 31,
     
Details About Accumulated Other
Comprehensive (Loss) Income Components
 
2014
   
2013
   
2012
   
Statement of
Operations Classification
Realized gains on available-for sale securities
 
$
-
   
$
 90
   
$
 785
   
Gain on sale of securities and other
Less: Income tax expense
   
-
     
(33
)
   
 (275
)
 
Income tax (expense)
Tax valuation allowance
   
-
     
33
     
-
    benefit
Total reclassification related to available-for-sale securities
 
$
-
   
$
 90
   
$
 510
   
Net income (loss)
                             
Realized gains (losses) on cash flow hedges
 
$
(137
)
 
$
48
   
$
 (66
)
 
Cost of revenues
Less: Income tax (expense) benefit
 
 
-
     
(17
)
   
 23
   
Income tax (expense)
Tax valuation allowance
   
-
     
17
     
-
   
benefit
Total reclassification related to cash flow hedges
 
$
 (137
)
 
$
 48
   
$
 (43
)
 
Net income (loss)