Share-Based Compensation Manager Share Appreciation Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Schedule of Manager Stock Appreciation Plan [Line Items]
MSAP compendation expense COS	$ (11)	$ 33	$ 18
MSAP compensation SG&A	$ (216)	$ 388	$ 77
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 0.00	$ 0.00	$ 4.08
Manager Share Appreciation Plan Award, Fair Value Assumptions, Expected Volatility Rate			34.00%
Manager Share Appreciation Plan Award, Nonvested, Weighted Average Fair Value Price		$ 2.04	$ 2.59
Share-based Compensation, Manager Share Appreciation Plan, Fair Value Assumptions, Risk Free Interest Rate			1.40%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	0 days	0 days	4 years 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Stock Issued During Period, Grants, Manager Share Appreciation Plan Awards	242,400	244,750	163,125
Number of Shares Related to Manager Share Appreciation Plan Awards, Vested	(103,648)	(78,911)	(43,230)
Number of Shares Related to Manager Share Appreciation Plan Awards, Cashed Out	(382,054)
Number of Shares Related to Manager Share Appreciation Plan Awards, Forfeited	(87,057)	(73,250)	(30,875)
Manager Share Appreciation Plan Grants Unvested, Number	0	330,359	237,770	148,750
Manager Share Appreciation Plan Compensation	$ (227)	$ 421	$ 95
Manager Share Appreciation Plan, Liabilities		$ 549	$ 100
Manager Stock Appreciation Plan [Member]
Schedule of Manager Stock Appreciation Plan [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	4 years 2 months 12 days	4 years 1 month 6 days	4 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Minimum [Member]
Schedule of Manager Stock Appreciation Plan [Line Items]
Manager Share Appreciation Plan Award, Fair Value Assumptions, Expected Volatility Rate	32.00%	34.00%
Share-based Compensation, Manager Share Appreciation Plan, Fair Value Assumptions, Risk Free Interest Rate	0.50%	0.80%
Maximum [Member]
Schedule of Manager Stock Appreciation Plan [Line Items]
Manager Share Appreciation Plan Award, Fair Value Assumptions, Expected Volatility Rate	39.00%	37.00%
Share-based Compensation, Manager Share Appreciation Plan, Fair Value Assumptions, Risk Free Interest Rate	1.20%	1.40%