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Note 14 - Restructuring Charges - Restructuring Activities (Details) - USD ($) | 3 Months Ended | 12 Months Ended | 36 Months Ended
--- | --- | --- | ---
Apr. 02, 2017 | Jan. 01, 2017 | Jan. 01, 2017 | Dec. 30, 2018 | Dec. 31, 2017 | Dec. 30, 2018
Total restructuring charge | $ 7,300,000 |  | $ 19,800,000 |  |  |
Employee Severance [Member] | The 2018 Restructuring Plan [Member] |  |  |  |  |  |
Total restructuring charge |  |  |  | $ 10,816,000 |  |
Cost incurred |  |  |  | 53,000 |  |
Balance |  |  |  | 10,763,000 |  | $ 10,763,000
Employee Severance [Member] | The 2016 Separate Restructuring Plan [Member] |  |  |  |  |  |
Total restructuring charge |  |  |  |  |  | 10,652,000
Cost incurred |  | $ 1,451,000 |  | 2,568,000 | $ 6,633,000 |
Balance |  |  |  | 0 |  | 0
Fixed Asset Impairment [Member] | The 2018 Restructuring Plan [Member] |  |  |  |  |  |
Total restructuring charge |  |  |  | 8,569,000 |  |
Cost incurred |  |  |  | 8,569,000 |  |
Balance |  |  |  | 0 |  | 0
Fixed Asset Impairment [Member] | The 2016 Separate Restructuring Plan [Member] |  |  |  |  |  |
Total restructuring charge |  |  |  |  |  | 11,319,000
Cost incurred |  | 8,019,000 |  | 0 | 3,300,000 |
Balance |  |  |  | 0 |  | 0
Lease Exit Costs [Member] | The 2016 Separate Restructuring Plan [Member] |  |  |  |  |  |
Total restructuring charge |  |  |  |  |  | 5,116,000
Cost incurred |  | $ 27,000 |  | 0 | $ 5,089,000 |
Balance |  |  |  | 0 |  | 0
Other Restructuring [Member] | The 2018 Restructuring Plan [Member] |  |  |  |  |  |
Total restructuring charge |  |  |  | 1,144,000 |  |
Cost incurred |  |  |  | 0 |  |
Balance |  |  |  | $ 1,144,000 |  | $ 1,144,000

X
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- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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