Debt (Schedule Of Long-Term Debt) (Details) - USD ($)	Sep. 27, 2015	Dec. 28, 2014
Debt Instrument [Line Items]
Full-recourse factoring liabilities	$ 0	$ 83,000
Bank overdraft credit facility	97,000	65,000
Capital leases with maturities through 2020	289,000	249,000
Total	65,386,000	65,397,000
Less current portion	185,000	236,000
Total long-term portion	65,201,000	65,161,000
Face value	200,000,000	200,000,000
2013 $200 Million Variable Interest Rate Revolving Facility Maturing in 2018 | Senior Secured Credit Facility
Debt Instrument [Line Items]
$200 million variable interest rate revolving credit facility maturing in 2018	$ 65,000,000	$ 65,000,000