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Note 11 - Derivatives and Hedging Activities (Tables)
6 Months Ended
Jun. 30, 2019
Notes Tables  
Schedule of Derivative Instruments [Table Text Block]
   
June
3
0,
201
9
(Unaudited)
   
December 31,
201
8
 
                 
Derivative assets
:
 
 
 
 
 
 
 
 
Derivatives designated as cash flow hedging instruments:
               
Foreign exchange option contracts
  $
8
    $
 
Foreign exchange forward contracts
   
46
     
 
Total
  $
54
    $
 
                 
Derivative liabilities
:
 
 
 
 
 
 
 
 
Derivatives designated as cash flow hedging instruments:
               
Foreign exchange option contracts
  $
    $
14
 
Foreign exchange forward contracts
   
     
63
 
Total
  $
    $
77
 
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
   
Six
months ended

June
3
0
,
   
Three months ended

June
3
0
,
 
   
201
9
(unaudited)
   
201
8
(unaudited)
   
201
9
(unaudited)
   
201
8
(unaudited)
 
Derivatives designated as cash flow hedging instruments:
                               
Foreign exchange option contracts
  $
29
    $
(126
)   $
13
    $
(107
)
Foreign exchange forward contracts
   
289
     
(154
)    
99
     
(149
)
    $
318
    $
(280
)   $
112
    $
(256
)
Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Six
months ended

June
3
0
,
   
Three months ended

June
3
0
,
 
   
201
9
(unaudited)
   
201
8
(unaudited)
   
201
9
(unaudited)
   
201
8
(unaudited)
 
Derivatives designated as cash flow hedging instruments:
                               
Foreign exchange option contracts
  $
(7
)   $
97
    $
(7
)   $
83
 
Foreign exchange forward contracts
   
(180
)    
99
     
(107
)    
94
 
    $
(187
)   $
196
    $
(114
)   $
177