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Note 17 - Enterprise-wide Disclosure (Details) - Operating Segment Summary Information - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Jan. 03, 2016 | Oct. 04, 2015 | Jul. 05, 2015 | Apr. 05, 2015 | Dec. 28, 2014 | Sep. 28, 2014 | [2] | Jun. 29, 2014 | Mar. 30, 2014 | Jan. 03, 2016 | Dec. 28, 2014 | Dec. 29, 2013
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales | $ 246,636 | [1] | $ 254,686 | $ 263,637 | $ 236,904 | $ 272,096 | [1] | $ 252,191 | $ 260,624 | $ 218,992 | $ 1,001,863 | [3] | $ 1,003,903 | [3] | $ 959,989 | [3]
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 30,803 |  | 30,677 |  | 24,670 |
Total assets | 756,549 |  |  |  |  | 774,914 |  |  |  |  | 756,549 |  | 774,914 |  |  |
Americas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 593,163 |  | 573,458 |  | 545,882 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 15,390 |  | 14,719 |  | 13,317 |
Total assets | 223,085 |  |  |  |  | 221,324 |  |  |  |  | 223,085 |  | 221,324 |  |  |
Europe [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 262,671 |  | 276,845 |  | 262,640 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 5,007 |  | 4,803 |  | 3,777 |
Total assets | 249,241 |  |  |  |  | 258,847 |  |  |  |  | 249,241 |  | 258,847 |  |  |
Asia Pacific [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 146,029 |  | 153,600 |  | 151,467 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 9,167 |  | 9,412 |  | 6,332 |
Total assets | 175,940 |  |  |  |  | 174,335 |  |  |  |  | 175,940 |  | 174,335 |  |  |
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  |  |  | 1,001,863 |  | 1,003,903 |  | 959,989 |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 29,564 |  | 28,934 |  | $ 23,426 |
Total assets | $ 648,266 |  |  |  |  | $ 654,506 |  |  |  |  | $ 648,266 |  | $ 654,506 |  |  |
[1] | Results for the fourth quarter of 2014 include debt retirement expenses of $12.0 million.
[2] | Results for the third quarter of 2014 include restructuring and asset impairment charges of $12.4 million.
[3] | Revenue attributed to geographic areas is based on the location of the customer.

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