Note 17 - Enterprise-wide Disclosure (Details) - Reconciliation of Total Operating Segment Depreciation, Amortization, and Assets to Consolidated Amounts - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
DEPRECIATION AND AMORTIZATION
Depreciation and Amortization	$ 30,803	$ 30,677	$ 24,670
ASSETS
Assets	756,549	774,914
Operating Segments [Member]
DEPRECIATION AND AMORTIZATION
Depreciation and Amortization	29,564	28,934	23,426
ASSETS
Assets	648,266	654,506
Corporate, Non-Segment [Member]
DEPRECIATION AND AMORTIZATION
Depreciation and Amortization	1,239	1,743	$ 1,244
ASSETS
Assets	$ 108,283	$ 120,408