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Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2012
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]

The following provides a reconciliation of changes in product warranty and recall liability:

 

Nine months ended September 30   2012     2011  
             
Product warranty and recall at beginning of period   $ 5,301     $ 3,831  
Accruals for products shipped during period     1,501       1,354  
Aggregate changes in pre-existing liabilities due to claim developments     693       (181 )
Settlements made during the period (in cash or in kind)     (1,661 )     (1,943 )
Product warranty and recall at end of period   $ 5,834     $ 3,061