SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Feb. 25, 2017	Feb. 27, 2016	Feb. 25, 2017	Feb. 27, 2016
Segment Reporting Information [Line Items]
Net Sales	$ 32,313	$ 31,291	$ 99,513	$ 102,448
Gross Profit	10,692	9,750	31,896	31,447
PMT [Member]
Segment Reporting Information [Line Items]
Net Sales	24,763	23,008	75,373	75,365
Gross Profit	8,075	7,140	23,803	22,793
Canvys [Member]
Segment Reporting Information [Line Items]
Net Sales	4,824	5,190	14,883	17,773
Gross Profit	1,331	1,204	4,222	4,439
Healthcare [Member]
Segment Reporting Information [Line Items]
Net Sales	2,726	3,093	9,257	9,310
Gross Profit	$ 1,286	$ 1,406	$ 3,871	$ 4,215

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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+ References

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