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Goodwill and Intangible Assets
3 Months Ended
Mar. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]  
Goodwill And Intangible Assets Disclosure [Text Block]

Note 11 – Goodwill and Other Intangible Assets

The changes in carrying amount of goodwill for the three months ended March 31, 2013 are as follows and the Company has recorded no impairment charges in the past:

  Metalworking       
  Process       
  Chemicals Coatings Total 
 Balance as of December 31, 2012$51,088 $8,081 $59,169 
 Currency translation adjustments 79  0  79 
 Balance as of March 31, 2013$51,167 $8,081 $59,248 

Gross carrying amounts and accumulated amortization for definite-lived intangible assets as of March 31, 2013 and December 31, 2012 are as follows:

   Gross Carrying Accumulated 
   Amount Amortization 
   2013 2012 2013 2012 
 Amortized intangible assets            
  Customer lists and rights to sell$33,371 $32,356 $8,684 $8,192 
  Trademarks and patents 6,778  6,760  2,732  2,548 
  Formulations and product technology 5,278  5,278  3,501  3,423 
  Other 5,463  5,467  4,101  3,989 
  Total$50,890 $49,861 $19,018 $18,152 

The Company recorded $879 and $746 of amortization expense in the three months ended March 31, 2013 and March 31, 2012, respectively. Estimated annual aggregate amortization expense for the current year and subsequent five years is as follows:

 For the year ended December 31, 2013$3,395 
 For the year ended December 31, 2014$3,164 
 For the year ended December 31, 2015$3,164 
 For the year ended December 31, 2016$2,684 
 For the year ended December 31, 2017$2,030 
 For the year ended December 31, 2018$2,014 

The Company has two indefinite-lived intangible assets totaling $1,100 for trademarks at March 31, 2013.