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Accrued Warranty (Details) - Changes in the Company`s product warranty reserve (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Changes in the Company`s product warranty reserve [Abstract]    
Balance at beginning of period $ 453 $ 665
Accrued warranty expense 500 529
Warranty claims paid (467) (600)
Translation adjustment (17) (25)
Balance at end of period $ 469 $ 569