Warranty Costs (Tables)

6 Months Ended

Jun. 30, 2012

Warranty Costs [Abstract]

Schedule Of Activity Reflects In Aggregate Accrued Warranty Costs

(THOUSANDS OF DOLLARS)	THREE MONTHS ENDED				SIX MONTHS ENDED
	JUNE 30, 2012		JULY 2, 2011		JUNE 30, 2012		JULY 2, 2011
Accrued Warranty Costs - Beginning of Period	$	1,931	$	1,779	$	1,892	$	1,998
Warranty costs paid		(42)		(64)		(138)		(140)
Warranty costs accrued		(2)		147		133		230
Impact of changes in estimates and assumptions		-		-		-		(226)
Accrued Warranty Costs - End of Period	$	1,887	$	1,862	$	1,887	$	1,862