Consolidated Statements Of Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interests
Balance at Dec. 30, 2012	$ 354,309	$ 4,476	$ 424,715	$ (4,356)	$ (71,520)	$ 306	$ 688
Balance, shares at Dec. 30, 2012		44,763			4,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	(18,927)			(18,928)			1
Exercise of stock-based compensation and awards released	2,561	72	2,489
Exercise of stock-based compensation and awards released, shares		721
Tax benefit on stock-based compensation	82		82
Stock-based compensation expense	6,369		6,369
Deferred compensation plan	681		681
Sale of interest in subsidiary	(516)						(516)
Amortization of pension plan actuarial losses, net of tax	1,120					1,120
Change in realized and unrealized losses on derivative hedges, net of tax	(21)					(21)
Recognized loss on pension, net of tax	1,403					1,403
Prior service cost arising during period, net of tax	(158)					(158)
Foreign currency translation adjustment	(578)					(405)	(173)
Balance at Dec. 29, 2013	346,325	4,548	434,336	(23,284)	(71,520)	2,245	0
Balance, shares at Dec. 29, 2013		45,484			4,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	9,725			9,725
Exercise of stock-based compensation and awards released	(72)	24	(96)
Exercise of stock-based compensation and awards released, shares		239
Tax benefit on stock-based compensation	(6)		(6)
Stock-based compensation expense	2,898		2,898
Deferred compensation plan	503		503
Amortization of pension plan actuarial losses, net of tax	555					555
Change in realized and unrealized losses on derivative hedges, net of tax	0
Foreign currency translation adjustment	875					875
Balance at Jun. 29, 2014	$ 360,803	$ 4,572	$ 437,635	$ (13,559)	$ (71,520)	$ 3,675	$ 0
Balance, shares at Jun. 29, 2014		45,723			4,036