Segment Reporting - Schedule of Operating Results by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Aug. 29, 2020	Aug. 31, 2019
Segment Reporting Information [Line Items]
Net Sales	$ 38,812	$ 40,653
Gross Profit	12,359	12,951
PMT
Segment Reporting Information [Line Items]
Net Sales	30,252	30,567
Gross Profit	9,971	9,679
Canvys
Segment Reporting Information [Line Items]
Net Sales	6,712	7,277
Gross Profit	2,284	2,321
Healthcare
Segment Reporting Information [Line Items]
Net Sales	1,848	2,809
Gross Profit	$ 104	$ 951

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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