Warranty Costs (Tables)

6 Months Ended

Jun. 29, 2013

Warranty Costs [Abstract]

Schedule Of Activity Reflects In Aggregate Accrued Warranty Costs

(THOUSANDS OF DOLLARS)	THREE MONTHS ENDED				SIX MONTHS ENDED
	JUNE 29,		JUNE 30,		JUNE 29,		JUNE 30,
	2013		2012		2013		2012
Accrued Warranty Costs - Beginning of Period	$	1,701	$	1,931	$	1,712	$	1,892
Warranty costs paid		(163)		(42)		(263)		(138)
Warranty costs accrued		190		(2)		279		133
Accrued Warranty Costs - End of Period	$	1,728	$	1,887	$	1,728	$	1,887