Income Taxes - Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]
U.S	$ (4,875)	$ (11,634)
Foreign	9,382	8,039
Income (loss) before income taxes	$ 4,507	$ (3,595)
Effective tax rate	74.50%	199.60%

Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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