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7. Intangible assets
12 Months Ended
Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Text Block]
7. Intangible assets

Identifiable intangible assets are recorded in Intangible assets in the accompanying Consolidated Balance Sheets and are comprised of the following:

   
December 31,
 
   
2011
   
2010
 
 
(In thousands)
 
Gross Amount
   
Accumulated Amortization
   
Gross Amount
   
Accumulated Amortization
 
Purchased technology
  $ 1,528     $ (443 )   $ 493     $ (334 )
Customer relationships
    1,300       (79 )     -       -  
Trademark
    480       (18 )     -       -  
Covenant not to compete
    146       (136 )     146       (115 )
Patents
    57       (29 )     57       (26 )
Other
    80       (25 )     -       -  
Total
  $ 3,591     $ (730 )   $ 696     $ (475 )

Amortization expense was $255,000 in 2011, $85,000 in 2010 and $84,000 in 2009, respectively.  Amortization expense for each of the next five years ending December 31 is expected to be as follows: $565,000 in 2012; $501,000 in 2013; $500,000 in 2014; $441,000 in 2015; $315,000 in 2016; and $539,000 thereafter.