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Note 13 - Taxes on Income (Details) - Net Deferred Tax Asset - USD ($) $ in Thousands | Jan. 03, 2016 | Dec. 28, 2014
--- | --- | ---
Net Deferred Tax Asset [Abstract] |  |
Basis differences of property and equipment | $ 0 | $ 0
Basis differences of property and equipment | 16,254 | 15,958
Basis difference of intangible assets | 0 | 0
Basis difference of intangible assets | 368 | 384
Foreign currency | 0 | 0
Foreign currency | 5,375 | 3,848
Net operating loss carryforwards | 5,575 | 28,463
Net operating loss carryforwards | 0 | 0
Valuation allowances on net operating loss carryforwards | (4,457) | (10,298)
Valuation allowances on net operating loss carryforwards | 0 | 0
Federal tax credits | 4,580 | 2,751
Federal tax credits | 0 | 0
Deferred compensation | 26,352 | 21,190
Deferred compensation | 0 | 0
Basis difference of prepaids, accruals and reserves | 7,971 | 7,816
Basis difference of prepaids, accruals and reserves | 0 | 0
Pensions | 1,075 | 3,152
Pensions | 0 | 0
Tax effects of undistributed earnings from foreign subsidiaries not deemed to be indefinitely reinvested | 0 | 0
Tax effects of undistributed earnings from foreign subsidiaries not deemed to be indefinitely reinvested | 1,226 | 948
Basis difference of other assets and liabilities | 458 | 0
Basis difference of other assets and liabilities | 0 | 68
| 41,554 | 53,074
| $ 23,223 | $ 21,206

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