Income Taxes - Reconciliation of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Assets:
Inventories	$ 9,006	$ 7,335
Accounts receivable	11,052	11,732
Accrued expenses	1,792	1,664
Foreign tax credits	1,050
Other		261
Total deferred tax assets	22,900	20,992
Valuation allowance	(1,050)
Net deferred tax assets	21,850	20,992
Liabilities:
Depreciation	9,094	7,936
Goodwill and intangible assets	11,310	11,776
Other	12
Gross deferred tax liabilities	20,416	19,712
Net deferred tax assets	$ 1,434	$ 1,280