XML 67 R68.htm IDEA: XBRL DOCUMENT v2.4.0.8
Product Warranties - Product Warranty Activity (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Guarantees [Abstract]      
Balance at the beginning of the period $ 364 $ 572 $ 649
Accruals for warranties for products sold in the period 327 439 1,392
Fulfillment of warranty obligations (297) (554) (1,134)
Revisions of estimated obligations (111) (93) (335)
Balance at the end of the period $ 283 $ 364 $ 572