Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Aug. 28, 2016	Aug. 30, 2015
Product sales	$ 132,394	$ 135,355
Cost of product sales	111,250	117,378
Gross profit	21,144	17,977
Operating costs and expenses:
Research and development	1,938	1,875
Selling, general and administrative	13,736	12,165
Total operating costs and expenses	15,674	14,040
Operating income	5,470	3,937
Dividend income	413	413
Interest income	4	31
Interest expense	(653)	(502)
Other income		800
Net income before taxes	5,234	4,679
Income tax expense	(1,889)	(1,691)
Consolidated net income	3,345	2,988
Non-controlling interest	(33)	(36)
Net income and comprehensive income applicable to common stockholders	$ 3,312	$ 2,952
Basic net income per share (in dollars per share)	$ 0.12	$ 0.11
Diluted net income per share (in dollars per share)	$ 0.12	$ 0.11
Shares used in per share computation:
Basic (in shares)	27,219	27,005
Diluted (in shares)	27,521	27,409