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Note 3 - Goodwill and Other Purchased Intangible Assets
9 Months Ended
Sep. 24, 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 nine-month period ended September 24, 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
    764  
Balance, September 24, 2016
  $ 61,028  
 
Purchased intangible assets, subject to amortization are as follows
(
in thousands
)
:
 
   
September 24, 2016
   
December 26, 2015
 
   
Gross Carrying
Amount
   
Accumulated
Amortization
   
Remaining
Useful Life
(in years)
   
Gross Carrying
Amount
   
Accumulated
Amortization
 
Rasco technology
  $ 27,513     $ 26,868       0.2     $ 26,904     $ 23,776  
Ismeca technology
    27,492       13,049       4.3       27,043       10,329  
Trade names
    5,651       401       14.0       5,547       92  
    $ 60,656     $ 40,318             $ 59,494     $ 34,197  
 
Amortization expense related to intangible assets was approximately $1.8 million in the third quarter of fiscal 2016 and $5.4 million in the first nine months of fiscal 2016. Amortization expense related to intangible assets was approximately $1.7 million in the third quarter of fiscal 2015 and $5.3 million in the first nine months of fiscal 2015. Changes in the carrying values of these intangible assets are a result of the impact of fluctuations in currency exchange rates.