INCOME TAXES - Income Tax Provisions (Benefits) Based on Income (Loss) that Differs from the Amount Obtained by Applying the Statutory Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Income tax provision (benefit) based on income (loss) that differs from the amount obtained by applying statutory tax rate
Income tax provision at statutory rate	$ 15,073	$ 16,688	$ 7,503
Increase (decrease) in taxes resulting from:
Non-deductible expenses	71	156	490
State tax, net of federal benefit	523	1,084	429
Foreign rate variance	(4,186)	(3,881)	(1,135)
Income tax credits	(725)	(783)	(1,636)
Valuation allowance	102	229	(873)
Tax contingency	356	(695)	(114)
Other, including deferred tax adjustment, net	731	(288)	1,034
Income tax provision	$ 11,945	$ 12,510	$ 5,698