Taxes on Income - Summary Reconciles Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Reconciliation Of Effective Income Tax Rate [Line Items]
Income taxes at U.S federal statutory rate	$ 13,336	$ 20,619	$ 5,220
Increase (decrease) in taxes resulting from:
State income taxes, net of federal tax effect	1,116	940	(1,713)
Non-deductible business expenses	1,009	373	354
Non-deductible employee compensation	469	587	399
Tax effects of Company owned life insurance	(448)	283	(1,281)
Tax effects of undistributed earnings from foreign subsidiaries not deemed to be indefinitely reinvested	321	774	960
Foreign and U.S. tax effects attributable to foreign operations	(1,174)	(2,115)	(491)
Valuation allowance effect - State NOL	(187)	(333)	1,717
Non-deductible reserve against capital asset	1,188	0	0
Income attributable to noncontrolling interest in subsidiary	0	0	(368)
Other	(426)	(488)	(181)
Income tax expense	$ 15,204	$ 20,640	$ 4,616

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to pretax Income or Loss from continuing operations; income tax expense or benefit may include interest and penalties on tax uncertainties based on the entity's accounting policy.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to noncontrolling interest income or expense that is exempt from income taxes under enacted tax laws.

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