Net Sales and Gross Profit by Geographic Region (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Aug. 30, 2014	Aug. 31, 2013
Segment Reporting Information [Line Items]
Net Sales	$ 34,699	$ 34,257
Total, Gross Profit	10,658	10,192
North America
Segment Reporting Information [Line Items]
Net Sales	14,699	14,109
Total, Gross Profit	5,183	4,935
Asia Pacific
Segment Reporting Information [Line Items]
Net Sales	6,505	6,305
Total, Gross Profit	2,119	1,943
Europe
Segment Reporting Information [Line Items]
Net Sales	11,049	11,489
Total, Gross Profit	3,719	3,595
Latin America
Segment Reporting Information [Line Items]
Net Sales	2,321	2,197
Total, Gross Profit	878	822
Other
Segment Reporting Information [Line Items]
Net Sales	125	157
Total, Gross Profit	$ (1,241)	$ (1,103)