Segment Reporting - Schedule of Operating Results by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Aug. 31, 2019	Sep. 01, 2018
Segment Reporting Information [Line Items]
Net Sales	$ 40,653	$ 44,157
Gross Profit	12,951	13,953
PMT
Segment Reporting Information [Line Items]
Net Sales	30,567	34,769
Gross Profit	9,679	11,007
Canvys
Segment Reporting Information [Line Items]
Net Sales	7,277	7,173
Gross Profit	2,321	2,313
Healthcare
Segment Reporting Information [Line Items]
Net Sales	2,809	2,215
Gross Profit	$ 951	$ 633

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

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
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