Note 12 - Income Taxes - Effective Income Tax Reconciliation and Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Dec. 27, 2014
Tax expense at statutory rate of 35%	$ 43,146	$ 37,432	$ 46,076
State and local taxes, net of federal tax benefit	(415)	1,907	1,186
Foreign income tax rate differential	(25,471)	(18,253)	(13,663)
Impairment of goodwill without tax benefit	3,088
Tax on unremitted earnings	2,747
Nondeductible professional fees	313	1,011
Tax deduction for stock of foreign subsidiary	(3,896)
Other, net	(726)	(856)	(53)
Income Tax Expense (Benefit)	18,786	26,082	33,546
MEXICO
Mexico manufacturing operations restructuring		$ 4,841