Share-Based Compensation Restricted Stock Units (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 29, 2012	Dec. 28, 2013
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	4 months 24 days
Restricted Stock Units, Weighted Average Remaining Vest Period	1 year 7 months 6 days	1 year 7 months 6 days	1 year 7 months 6 days	1 year 9 months 18 days
Share-based Compensation Award, Restricted Stock Units, Vested in Period, Total Fair Value	$ 2,100	$ 1,900
Share-based Compensation Award, Restricted Stock Units Unvested, Number	422,598	388,156	348,163		346,384
Share-based Compensation Award, Restricted Stock Units, Weighted Average Grant Date Fair Value	$ 9.92	$ 11.11	$ 11.60		$ 11.31
Stock Issued During Period, Shares, Restricted Stock Units	258,036	251,164	220,777
Restricted Stock Units, Granted, Weighted Average Grant Date Fair Value	$ 9.17	$ 10.66	$ 11.78
Stock Issued During Period, Shares, Restricted Stock Units, Vested	(189,763)	(169,692)	(163,990)
Stock Issued During Period, Shares, Restricted Stock Units, Forfeited	(33,831)	(41,479)	(55,008)
Restricted Stock Units, Forfeited, Weighted Average Grant Date Fair Value	$ 10.98	$ 11.71	$ 11.56
Share-based Compensation	$ 2,779	$ 2,787	$ 3,109
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	2,200	$ 2,100	$ 2,100
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 2,600
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