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Note 15 - Income Taxes (Details Textual) - USD ($) $ in Millions | 12 Months Ended
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Jan. 01, 2022 | Jan. 02, 2021
Effective Income Tax Rate Reconciliation, Percent, Total | 21.00% | 26.40%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00%
Puerto Rico Department of Treasury [Member] |  |
Open Tax Year | 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 |
Domestic Tax Authority [Member] |  |
Operating Loss Carryforwards, Total | $ 2.9 |
State and Local Jurisdiction [Member] |  |
Operating Loss Carryforwards, Total | $ 8.6 |
Open Tax Year | 2018 2019 2020 2021 |
Foreign Tax Authority [Member] | Canada Revenue Agency [Member] |  |
Open Tax Year | 2017 2018 2019 2020 2021 |

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