XML 28 R77.htm IDEA: XBRL DOCUMENT v2.4.0.6
Product Warranty Reserve (Details) (Warranty Reserves [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Warranty Reserves [Member]
     
Rollforward of the product warranty reserve      
Balance at January 1 $ 824 $ 536 $ 209
Additions charged to income 1,384 1,968 403
Warranty usage (983) (1,467) (108)
Currency translation 4 (213) 32
Balance at December 31 $ 1,229 $ 824 $ 536