Significant Accounting Policies and Disclosures - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	May 29, 2021	May 30, 2020
Accounting Policies [Abstract]
Land and improvements	$ 1,385	$ 1,385
Buildings and improvements	22,837	22,525
Computer, communications equipment and software	11,029	10,775
Machinery and other equipment	14,930	14,326
Construction in progress	1,429	750
Property, plant and equipment, gross	51,610	49,761
Accumulated depreciation	(34,543)	(32,087)
Property, plant, and equipment, net	$ 17,067	$ 17,674

Computer And Communications Equipment, Gross

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Land And Improvements Gross

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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 tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount of accumulated depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

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