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Note 15 - Income Taxes - Income Tax Provision Reconciliation (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 30, 2017 | Dec. 28, 2019 | Dec. 29, 2018
Federal statutory rate | 35.00% | 21.00% | 21.00%
Tax expense on taxable (loss) income at federal statutory rate |  | $ 1,013 | $ 821
State and Puerto Rico income taxes, net of Federal income tax benefit |  | 305 | 91
Prior year United States R&D tax credits in current year |  | (668) | (341)
Permanent differences |  | 77 | 49
Foreign income tax rates |  | (101) | (173)
Adjustments to NOL and repatriation taxes |  | 154 | 730
Other |  | (16) | 16
Total income tax expense |  | $ 764 | $ 1,193

X
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to NOL adjustments and repatriation taxes. + References No definition available. + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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