Share-based Compensation Stock Option Vesting Schedule (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 23, 2013	Jun. 15, 2013	Dec. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Options Outstanding at Period Start	629,048	629,048
Exercised, Granted, Number of Options Outstanding		7,192
Number of Options Outstanding at Period End		621,856	629,048
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price of Stock Options Outstanding at Period Start (dollars per share)	$ 10.76	$ 10.76
Exercised, Weighted Average Exercise Price of Stock Options Outstanding (dollars per share)	$ 10.59
Weighted Average Exercise Price of Stock Options Outstanding at Period End (dollars per share)		$ 10.76	$ 10.76
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Nonvested stock options, Number of Options Outstanding		0	39,403
Stock Options Outstanding, Aggregate Intrinsic Value as of Date Listed		$ 2,564	$ 2,607
Number of Options Outstanding, Nonvested, Weighted Average Remaining Contractual Term			6 years 2 days
Options vested and exercisable, Weighted Average Remaining Contractual Term			5 years 1 month 10 days
Stock Options Outstanding, Weighted Average Remaining Contractual Term	5 years 2 months 2 days		5 years 4 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Nonvested stock options outstanding at Period Start, Number of Options	39,403	39,403
Nonvested stock options outstanding at Period Ending, Number of Options		0	39,403
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Nonvested stock options, Weighted Average Grant-Date Fair Value Per Option at Period End		$ 0	$ 3.24
Nonvested stock options, Weighted Average Grant-Date Fair Value Per Option at Period Start	$ 3.24	$ 3.24