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Note 7 - Segment Information - Operating Segment Summary Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Oct. 02, 2016
Oct. 04, 2015
Oct. 02, 2016
Oct. 04, 2015
Jan. 03, 2016
Operating Segments [Member] | Americas [Member]          
NET SALES $ 147,500,000 $ 152,710,000 $ 426,677,000 $ 450,299,000  
Depreciation and amortization 3,635,000 3,836,000 10,903,000 11,656,000  
Total assets 235,591,000   235,591,000    
Operating Segments [Member] | Europe [Member]          
NET SALES 62,682,000 66,440,000 181,904,000 197,220,000  
Depreciation and amortization 1,253,000 1,309,000 3,824,000 3,745,000  
Total assets 270,106,000   270,106,000    
Operating Segments [Member] | Asia Pacific [Member]          
NET SALES 38,167,000 35,536,000 110,529,000 107,708,000  
Depreciation and amortization 2,213,000 2,193,000 6,598,000 6,855,000  
Total assets 191,691,000   191,691,000    
Operating Segments [Member]          
NET SALES 248,349,000 254,686,000 719,110,000 755,227,000  
Depreciation and amortization 7,101,000 7,338,000 21,325,000 22,256,000  
Total assets 697,388,000   697,388,000    
NET SALES 248,349,000 254,686,000 719,110,000 755,227,000  
Depreciation and amortization 7,514,000 $ 7,649,000 22,474,000 $ 23,188,000  
Total assets $ 787,540,000   $ 787,540,000   $ 756,549,000