Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) shares in Thousands	3 Months Ended
	Aug. 30, 2015	Aug. 31, 2014
Product sales	$ 135,355,000	$ 133,614,000
Cost of product sales	117,378,000	119,426,000
Gross profit	17,977,000	14,188,000
Operating costs and expenses:
Research and development	1,875,000	1,795,000
Selling, general and administrative	12,165,000	8,859,000
Total operating costs and expenses	14,040,000	10,654,000
Operating income	3,937,000	3,534,000
Dividend income	413,000	281,000
Interest income	31,000	93,000
Interest expense	(502,000)	(383,000)
Other income	800,000	200,000
Net income before taxes	4,679,000	3,725,000
Income tax expense	(1,691,000)	(1,301,000)
Consolidated net income	2,988,000	2,424,000
Non-controlling interest	(36,000)	(71,000)
Net income and comprehensive income applicable to common stockholders	$ 2,952,000	$ 2,353,000
Basic net income per share (in dollars per share)	$ 0.11	$ 0.09
Diluted net income per share (in dollars per share)	$ 0.11	$ 0.09
Shares used in per share computation
Basic (in shares)	27,005	26,840
Diluted (in shares)	27,409	27,267