Income Taxes (Components of Income Tax Expense (Benefit) on Income (Loss) from Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
Current tax expense:
Federal	$ 0	$ 0
Foreign	1,230	592
State	1,748	1,058
Current tax expense	2,978	1,650
Deferred tax expense:
Federal	1,165	1,109
Foreign	(279)	270
State	394	1,364
Deferred tax expense	1,280	2,743
Income tax expense	$ 4,258	$ 4,393