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Note 15 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Jan. 02, 2016 | Jan. 03, 2015
Effective Income Tax Rate Reconciliation, Percent | 46.80% | 15.90% |
Goodwill | $ 12,325 | $ 11,630 | $ 10,223
Income Tax Examination, Penalties and Interest Expense | 0 | 0 |
Information Technology [Member] |  |  |
Goodwill | $ 5,516 | 5,516 | $ 5,516
Information Technology [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |
Goodwill |  | $ 0 |
Foreign Tax Authority [Member] | Canada Revenue Agency [Member] | Maximum [Member] |  |  |
Effective Income Tax Rate Reconciliation, Percent | 30.00% |  |
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | Tax Year 2011 [Member] |  |  |
Income Tax Examination, Year under Examination | 2011 |  |
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | Tax Year 2012 [Member] |  |  |
Income Tax Examination, Year under Examination | 2012 |  |
State and Local Jurisdiction [Member] | New Jersey Division of Taxation [Member] | Earliest Tax Year [Member] |  |  |
Income Tax Examination, Year under Examination | 2009 |  |
State and Local Jurisdiction [Member] | New Jersey Division of Taxation [Member] | Latest Tax Year [Member] |  |  |
Income Tax Examination, Year under Examination | 2012 |  |

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