Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Oct. 01, 2016	Oct. 03, 2015
Valuation Allowance [Line Items]
Effective Income Tax Rate, Continuing Operations	47.80%	43.00%	42.80%	43.60%
Provision for income taxes	$ 3,522	$ 3,685	$ 12,203	$ 12,041
CALIFORNIA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	4,000		4,000
SOUTH CAROLINA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	600		600
CANADA
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 1,500		1,500
Maximum [Member]
Valuation Allowance [Line Items]
Unrecognized Tax Benefits, Period Increase (Decrease)			$ 200