Note 7 - Guarantees and Other Obligations (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	Three Months Ended
	March 31,			March 25,
	2018			2017
Balance at beginning of period	$	4,849		$	4,350
Warranty expense accruals		1,582			1,736
Warranty payments		(1,515	)		(1,191	)
Warranty liability assumed		-			50
Balance at end of period	$	4,916		$	4,945