Note 4 - Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 26, 2015

Notes Tables

Schedule of Goodwill [Table Text Block]

	Total Goodwill
Balance, December 28, 2013	$	67,983
Impact of currency exchange		(4,851	)
Balance, December 27, 2014		63,132
Impact of currency exchange		(2,868	)
Balance, December 26, 2015	$	60,264

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 26, 2015						December 27, 2014
					Remaining
	Gross Carrying		Accumulated		Useful Life		Gross Carrying		Accumulated
	Amount		Amortization		(years)		Amount		Amortization
Rasco technology	$	26,904	$	23,776		0.9	$	29,845	$	22,616
Ismeca technology		27,043		10,329		5.0		27,014		6,879
Trade names		5,547		92		14.7		5,723		-
	$	59,494	$	34,197			$	62,582	$	29,495