Operating Results by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 02, 2013	Mar. 03, 2012	Mar. 02, 2013	Mar. 03, 2012
Segment Reporting Information [Line Items]
Net sales	$ 33,630	$ 38,330	$ 105,883	$ 118,979
Gross Profit	9,910	11,297	31,298	35,689
EDG
Segment Reporting Information [Line Items]
Net sales	24,333	26,867	76,146	85,618
Gross Profit	7,407	8,085	23,337	26,302
Canvys
Segment Reporting Information [Line Items]
Net sales	9,297	11,463	29,737	33,361
Gross Profit	$ 2,503	$ 3,212	$ 7,961	$ 9,387