Debt and Financing Arrangements (Details) - USD ($)		3 Months Ended		8 Months Ended
	Sep. 11, 2015	Sep. 12, 2015	Sep. 06, 2014	Sep. 12, 2015	Sep. 06, 2014	Jan. 03, 2015	Oct. 16, 2014
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							$ 140,000,000
Long-term Debt		$ 73,500,000		$ 73,500,000		$ 78,800,000
Voluntary prepayment on term loan	$ 3,000,000
Interest Costs Incurred		400,000	$ 100,000	1,400,000	$ 300,000
Capitalized interest		100,000	$ 100,000	439,000	$ 189,000
Letters of Credit Outstanding, Amount		4,500,000		4,500,000		400,000
Line of Credit Facility, Current Borrowing Capacity		$ 10,100,000		$ 10,100,000		13,800,000
Debt, Weighted Average Interest Rate		3.10%	1.90%	3.10%	1.90%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding		$ 0		$ 0		$ 0