Share-Based Compensation Restricted Stock Units (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	5 months 1 day
Restricted Stock Units, Weighted Average Remaining Vest Period	1 year 7 months 6 days	1 year 7 months 6 days	1 year 9 months 18 days	2 years
Share-based Compensation Award, Restricted Stock Units, Vested in Period, Total Fair Value	$ 1,900	$ 1,800
Share-based Compensation Award, Restricted Stock Units Unvested, Number	388,156	348,163	346,384	274,851
Share-based Compensation Award, Restricted Stock Units, Weighted Average Grant Date Fair Value	$ 11.11	$ 11.60	$ 11.31	$ 10.50
Stock Issued During Period, Shares, Restricted Stock Units	251,164	220,777	228,488
Restricted Stock Units, Granted, Weighted Average Grant Date Fair Value	$ 10.66	$ 11.78	$ 11.76
Stock Issued During Period, Shares, Restricted Stock Units, Vested	(169,692)	(163,990)	(116,504)
Stock Issued During Period, Shares, Restricted Stock Units, Forfeited	(41,479)	(55,008)	(40,451)
Restricted Stock Units, Forfeited, Weighted Average Grant Date Fair Value	$ 11.71	$ 11.56	$ 11.02
Share-based Compensation	$ 2,787	$ 3,109	$ 3,207
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	2,100	$ 2,100	$ 1,500
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 2,800
Maximum [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years