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Property, Equipment and Leasehold Improvements (Detail) - USD ($) $ in Thousands	Dec. 29, 2017	Dec. 30, 2016
Property:
Land	$ 11,888	$ 11,888
Buildings	38,112	37,883
Construction in progress	632	67
Equipment:
Machinery and equipment	42,803	40,440
Office furniture and equipment	9,911	9,669
Leasehold improvements	15,178	14,464
Property, Plant and Equipment, Gross, Total	118,524	114,411
Less accumulated depreciation and amortization	83,510	77,701
Property, equipment and leasehold improvements, net	$ 35,014	$ 36,710

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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