Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Nov. 25, 2012	Nov. 27, 2011	Nov. 25, 2012	Nov. 27, 2011
Revenues:
Product sales	$ 114,091,000	$ 80,765,000	$ 215,394,000	$ 153,086,000
Services revenue, related party	563,000	805,000	1,334,000	1,785,000
Total revenues	114,654,000	81,570,000	216,728,000	154,871,000
Cost of revenue:
Cost of product sales	95,707,000	67,894,000	183,371,000	129,163,000
Cost of services revenue	488,000	666,000	1,135,000	1,448,000
Total cost of revenue	96,195,000	68,560,000	184,506,000	130,611,000
Gross profit	18,459,000	13,010,000	32,222,000	24,260,000
Operating costs and expenses:
Research and development	2,113,000	2,337,000	4,317,000	4,670,000
Selling, general and administrative	9,186,000	6,464,000	17,742,000	12,508,000
Change in value of contingent consideration	(3,933,000)		(3,933,000)
Total operating costs and expenses	7,366,000	8,801,000	18,126,000	17,178,000
Operating income	11,093,000	4,209,000	14,096,000	7,082,000
Dividend income	281,000	281,000	563,000	563,000
Interest income	33,000	81,000	58,000	157,000
Interest expense	(498,000)	(163,000)	(1,039,000)	(340,000)
Other income	983,000	1,079,000	5,241,000	1,088,000
Net income before taxes	11,892,000	5,487,000	18,919,000	8,550,000
Income tax expense	(2,920,000)	(2,049,000)	(5,484,000)	(3,159,000)
Consolidated net income	8,972,000	3,438,000	13,435,000	5,391,000
Non controlling interest	(59,000)	(98,000)	(156,000)	(239,000)
Net income applicable to Common Stockholders	8,913,000	3,340,000	13,279,000	5,152,000
Basic net income per share (in Dollars per share)	$ 0.35	$ 0.13	$ 0.52	$ 0.20
Diluted net income per share (in Dollars per share)	$ 0.34	$ 0.13	$ 0.50	$ 0.20
Basic (in Shares)	25,747	25,885	25,709	26,147
Diluted (in Shares)	26,539	26,135	26,387	26,399
Interest rate swap		106,000		52,000
Income tax expense		(40,000)		(20,000)
Other comprehensive income, net of tax		66,000		32,000
Comprehensive income attributable to Common Stockholders	$ 8,913,000	$ 3,406,000	$ 13,279,000	$ 5,184,000