Product Warranty Reserves (Tables)

3 Months Ended

Mar. 28, 2020

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 28, 2020			March 30, 2019
Product warranty reserve at beginning of period	$	1,002		$	1,069
Warranty liabilities accrued	278			508
Warranty liabilities settled	(381		)	(528		)
Changes for pre-existing warranty liabilities	—			(14		)
Product warranty reserve at end of period	$	899		$	1,035