Share-Based Compensation Performance-based RSUs (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award, Performance Stock Units Unvested, Number	141,690	80,658	0	0
Stock Issued During Period, Shares, Performance Stock Units	93,440	83,991	82,324
Performance Stock Units, Granted, Weighted Average Grant Date Fair Value	$ 9.20	$ 11.03	$ 12.03
Share-based Compensation Award, Performance Stock Units, Weighted Average Grant Date Fair Value	$ 9.82	$ 11.02
Stock Issued During Period, Shares, Performance Stock Units, Vested	(17,564)	0	0
Performance Stock Units, Vested, Weighted Average Grant Date Fair Value	$ 10.99
Stock Issued During Period, Shares, Performance Stock Units, Canceled			(82,324)
Performance Stock Units, Canceled, Weighted Average Grant Date Fair Value			$ 12.03
Stock Issued During Period, Shares, Performance Stock Units, Forfeited	(14,844)	(3,333)
Performance Stock Units, Forfeited, Weighted Average Grant Date Fair Value	$ 10.89	$ 11.03
Performance-Based Restricted Stock Units, Weighted Average Remaining Vest Period	1 year 10 months 24 days	2 years 3 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 2.47	$ 0.00	$ 0.00
Share-based Compensation	$ 2,779	$ 2,787	$ 3,109
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	4 months 24 days
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross			82,324
Stock Issued During Period, Shares, Share-based Compensation, Forfeited			82,324
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	$ 329	$ 159	$ 0
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 659
Maximum [Member] | Performance Shares [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