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Note 3 - Goodwill and Purchased Intangible Assets
3 Months Ended
Mar. 26, 2016
Notes to Financial Statements  
Goodwill and Intangible Assets Disclosure [Text Block]
3.     
Goodwill and Other Purchased Intangible Assets
 
Changes in the carrying value of goodwill during the year ended December 26, 2015 and the three-month period ended March 26, 2016 were as follows
(
in thousands
):
 
   
Goodwill
 
Balance, December 27, 2014
  $ 63,132  
Impact of currency exchange
    (2,868 )
Balance, December 26, 2015
    60,264  
Impact of currency exchange
    550  
Balance, March 26, 2016
  $ 60,814  
 
Purchased intangible assets, subject to amortization are as follows
(
in thousands
)
:
 
   
March 26, 2016
   
December 26, 2015
 
   
Gross Carrying
   
Accumulated
   
Remaining
   
Gross Carrying
   
Accumulated
 
   
Amount
   
Amortization
   
Useful Life (years)
   
Amount
   
Amortization
 
Rasco technology
  $ 27,371     $ 25,018       0.7     $ 26,904     $ 23,776  
Ismeca technology
    27,294       11,269       4.8       27,043       10,329  
Trade names
    5,614       212       14.5       5,547       92  
    $ 60,279     $ 36,499             $ 59,494     $ 34,197  
 
Amortization expense related to intangible assets in both the first quarter of fiscal 2016 and 2015 was $1.8 million. Changes in the carrying values of these intangible assets are a result of the impact of fluctuations in currency exchange rates.