Share-based Compensation Performance Restricted Stock Awards (Details) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended		6 Months Ended	12 Months Ended
	Jun. 15, 2013	Dec. 29, 2012	Jun. 15, 2013 Performance Restricted Stock Award [Member] Restricted Stock [Member]	Jan. 03, 2009 Performance Restricted Stock Award [Member] Restricted Stock [Member]	Mar. 23, 2013 Performance Restricted Stock Award [Member] Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Number of Shares				55,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	100,153	141,269			11,000
Allocated Share-based Compensation Expense	$ 445		$ 100