SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Feb. 27, 2016	Feb. 28, 2015	Feb. 27, 2016	Feb. 28, 2015
Segment Reporting Information [Line Items]
Net sales	$ 31,291	$ 33,471	$ 102,448	$ 102,011
Gross Profit	9,750	9,800	31,447	30,920
PMT [Member]
Segment Reporting Information [Line Items]
Net sales	23,008	25,207	75,365	79,432
Gross Profit	7,140	7,680	22,793	24,904
Canvys [Member]
Segment Reporting Information [Line Items]
Net sales	5,190	6,236	17,773	18,110
Gross Profit	1,204	1,621	4,439	4,929
Healthcare [Member]
Segment Reporting Information [Line Items]
Net sales	3,093	2,028	9,310	4,469
Gross Profit	$ 1,406	$ 499	$ 4,215	$ 1,087

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=26872669&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=26872669&loc=d3e20235-122688

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+ References

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