Debt And Financing Arrangements (Details) (USD $) In Millions, unless otherwise specified				3 Months Ended	6 Months Ended
	Jun. 15, 2013	Dec. 29, 2012	Jun. 16, 2012	Jun. 15, 2013 Revolving Credit Facility [Member]	Jun. 15, 2013 Revolving Credit Facility [Member]	Jun. 16, 2012 Revolving Credit Facility [Member]	Jun. 15, 2013 Notes Payable, Other Payables [Member]	Dec. 29, 2012 Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 40.0
Long-term Debt	19.8	19.5
Line of Credit Facility, Amount Outstanding				0	0
Interest Costs Incurred				0.1	0.2	0.3
Interest Costs Capitalized				0.1	0.1	0.1
Debt, Weighted Average Interest Rate	2.50%		2.74%
Debt Instrument, Interest Rate, Effective Percentage	2.62%		2.98%
Letters of Credit Outstanding, Amount	0.3	0.3
Line of Credit Facility, Current Borrowing Capacity	14.9	19.7
Long-term Debt, Fair Value							1.8	1.4
Notes Payable, Current							$ 0.9	$ 0.6