Product Warranty Reserves (Tables)

3 Months Ended

Mar. 30, 2013

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

The following is a summary of the Company's product warranty activity.

	Three Months Ended
	March 30, 2013			March 31, 2012
Warranty reserve at beginning of period	$	1,297		$	1,219
Warranty liabilities accrued	900			742
Warranty liabilities settled	(830		)	(867		)
Changes for pre-existing warranty liabilities	(78		)	12
Warranty reserve at end of period	$	1,289		$	1,106