Shareholders' Equity (Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jan. 02, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Accumulated Other Comprehensive (Loss) Income, Net of Tax [Roll Forward]
Beginning Balance		$ (5,375)
Ending Balance	$ (5,186)	(5,186)	$ (5,375)
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive (Loss) Income, Net of Tax [Roll Forward]
Beginning Balance		2,223	2,913	$ 5,475
Other comprehensive income before reclassifications		(1,901)	(690)	(2,562)
Less: Taxes		0	0	0
Amounts reclassified from accumulated other comprehensive income, net of tax		0	0	0
Ending Balance	322	322	2,223	2,913
Unrealized Gains (Losses) on Marketable Securities [Member]
Accumulated Other Comprehensive (Loss) Income, Net of Tax [Roll Forward]
Beginning Balance		37	81	205
Other comprehensive income before reclassifications		(60)	(67)	(191)
Less: Taxes		(21)	(23)	(67)
Amounts reclassified from accumulated other comprehensive income, net of tax		0	0	0
Ending Balance	(2)	(2)	37	81
Pension Postretirement Liability [Member]
Accumulated Other Comprehensive (Loss) Income, Net of Tax [Roll Forward]
Beginning Balance		(6,763)	(2,140)	(4,291)
Other comprehensive income before reclassifications		1,975	(7,280)	3,389
Less: Taxes		718	(2,657)	1,312
Amounts reclassified from accumulated other comprehensive income, net of tax		0	0	74
Ending Balance	(5,506)	(5,506)	(6,763)	(2,140)
Derivative Financial Instruments [Member]
Accumulated Other Comprehensive (Loss) Income, Net of Tax [Roll Forward]
Beginning Balance		(872)	111	(76)
Other comprehensive income before reclassifications		(1,188)	(1,728)	538
Less: Taxes		(433)	(631)	197
Amounts reclassified from accumulated other comprehensive income, net of tax	1,252	1,627	114	(154)
Ending Balance	0	0	(872)	111
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive (Loss) Income, Net of Tax [Roll Forward]
Beginning Balance		(5,375)	965	1,313
Other comprehensive income before reclassifications		(1,174)	(9,765)	1,174
Less: Taxes		264	(3,311)	1,442
Amounts reclassified from accumulated other comprehensive income, net of tax		1,627	114	(80)
Ending Balance	$ (5,186)	$ (5,186)	$ (5,375)	$ 965