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Goodwill and Intangibles
12 Months Ended
Sep. 30, 2012
Goodwill Details [Abstract]  
Goodwill And Intangible Assets Disclosure [Text Block]

6.Goodwill and Intangibles

The changes in the carrying value of goodwill for the fiscal years ended September 30, 2012 and 2011 are as follows:

        
    2012  2011
 Goodwill - Beginning of year $ 49,041 $ 47,330
 Acquisition activity   12,473   1,823
 Foreign exchange   327   (112)
 Goodwill - End of year $ 61,841 $ 49,041
        
        

Intangible assets consist of the following as of September 30:

           
    Useful Lives 2012 2011
 Amortizing:        
  Customer relationships 9-20 years $ 31,045 $ 24,981
  Covenants not to compete 1-5 years   710   808
  Technology 11 years   5,830   -
  Other 3-5 years   1,084   455
        38,669   26,244
 Accumulated amortization     (7,640)   (5,109)
        31,029   21,135
 Non-Amortizing:        
  Trade names and patents     7,677   3,759
      $ 38,706 $ 24,894
           

We recorded amortization expense of $2,852, $1,783 and $1,312 for the years ended September 30, 2012, 2011 and 2010, respectively. Estimated amortization expense related to intangible assets as of September 30, 2012 is as follows:

    
  Amount
 2013$2,737
 2014 2,601
 2015 2,295
 2016 2,192
 2017 2,119
  Thereafter 19,085
  $31,029