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Note 13 - Taxes on Income (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 01, 2017 | Jan. 03, 2016 | Dec. 28, 2014 | Dec. 29, 2013
Operating Loss Carryforwards, Share-based Compensation | $ 18,000 |  |  |
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation | 6,300 |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign | 3,800 |  |  |
Operating Loss Carryforwards, Valuation Allowance | 2,500 | $ 4,457 |  |
Increase (Decrease) in Deferred Tax Assets | $ (5,000) | $ (14,200) |  |
Effective Income Tax Rate Reconciliation, Percent | 31.60% | 31.50% | 30.60% |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 35.00% |  |  |
Undistributed Earnings of Foreign Subsidiaries | $ 279,000 |  |  |
Deferred Tax Liabilities, Undistributed Foreign Earnings | 5,900 |  |  |
Foreign Earnings to Be Repatriated | 4,800 |  |  |
Unrecognized Tax Benefits | 27,888 | $ 28,271 | $ 27,301 | $ 27,361
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 27,900 |  |  |
Unrecognized Tax Benefits That Would Require To Settle Through Cash | 18,300 |  |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 1,400 |  |  |
Discontinued Operations [Member] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 58,700 |  |  |
Domestic Tax Authority [Member] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | 14,000 |  |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | $ 1,600 |  |  |
Domestic Tax Authority [Member] | Earliest Tax Year [Member] |  |  |  |
Open Tax Year | 2003 |  |  |
Domestic Tax Authority [Member] | Deferred Compensation, Share-based Payments [Member] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | $ 14,000 |  |  |
State and Local Jurisdiction [Member] |  |  |  |
Operating Loss Carryforwards, Valuation Allowance | $ 40,200 |  |  |
State and Local Jurisdiction [Member] | Earliest Tax Year [Member] |  |  |  |
Open Tax Year | 2011 |  |  |
State and Local Jurisdiction [Member] | Continuing Operations [Member] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | $ 108,900 |  |  |
Foreign Tax Authority [Member] |  |  |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | $ 200 |  |  |
Foreign Tax Authority [Member] | Earliest Tax Year [Member] |  |  |  |
Open Tax Year | 2006 |  |  |

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