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Note 7 - Intangible Assets (Tables)

12 Months Ended

May 25, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

		Food Products Technology				Corporate				Hyaluronan- based Biomaterials				Total

Balance as of May 29, 2011			22,581				—				13,881				36,462
Goodwill acquired during the period			13,158				—				—				13,158
Balance as of May 27, 2012			35,739				—				13,881				49,620
Balance as of May 26, 2013		$	35,739			$	—			$	13,881			$	49,620
Balance as of May 25, 2014		$	35,739			$	—			$	13,881			$	49,620

Schedule of Finite-Lived Intangible Assets [Table Text Block]

			Trademarks & Trade names				Customer Relationships				Total
Balance as of May 29, 2011				12,428				3,366				15,794
Acquired during the period				36,000				7,500				43,500
Amortization expense				—				(309	)			(309	)
Balance as of May 27, 2012				48,428				10,557				58,985
Amortization expense				—				(951	)			(951	)
Balance as of May 26, 2013			$	48,428			$	9,606			$	58,034
Amortization expense				—				(886	)			(886	)
Balance as of May 25, 2014			$	48,428			$	8,720			$	57,148