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Fair Value of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2016
Fair Value of Financial Instruments [Abstract]  
Assets and Liabilities Measured at Fair Value
The following table presents assets and liabilities measured at fair value at December 31, 2016:

  
Quoted Prices
in Active Markets
for Identical Assets
  
Significant
Other Observable
Inputs
  
Significant
Unobservable
Inputs
    
(in thousands)
 
(Level 1)
  
(Level 2)
  
(Level 3)
  
Total
 
             
             
Money market funds
 
$
16,435
  
$
-
  
$
-
  
$
16,435
 
Foreign exchange contracts
  
-
   
141
   
-
   
141
 
                 
Total assets
 
$
16,435
  
$
141
  
$
-
  
$
16,576
 
                 
Foreign exchange contracts
 
$
-
  
$
(20
)
 
$
-
  
$
(20
)
Contingent consideration liability
  
-
   
-
   
(2,105
)
  
(2,105
)
                 
Total liabilities
 
$
-
  
$
(20
)
 
$
(2,105
)
 
$
(2,125
)

The following table presents assets and liabilities measured at fair value at December 31, 2015:

  
Quoted Prices
in Active Markets
for Identical Assets
  
Significant
Other Observable
Inputs
  
Significant
Unobservable
Inputs
    
(in thousands)
 
(Level 1)
  
(Level 2)
  
(Level 3)
  
Total
 
             
             
Money market funds
 
$
8,979
  
$
-
  
$
-
  
$
8,979
 
Foreign exchange contracts
  
-
   
121
   
-
   
121
 
                 
Total assets
 
$
8,979
  
$
121
  
$
-
  
$
9,100
 
                 
Foreign exchange contracts
 
$
-
  
$
(57
)
 
$
-
  
$
(57
)
Contingent consideration liability
  
-
   
-
   
(3,732
)
  
(3,732
)
                 
Total liabilities
 
$
-
  
$
(57
)
 
$
(3,732
)
 
$
(3,789
)