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Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc.

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Amount for accounts payable to related parties.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Additions made to capitalized computer software costs during the period.

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

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Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)		12 Months Ended
	Mar. 01, 2015 USD ($)	May. 31, 2015 USD ($) $ / shares shares	May. 25, 2014 USD ($) $ / shares shares	May. 26, 2013 USD ($) $ / shares shares
Customer Relationships [Member] \| Minimum [Member]
Finite-Lived Intangible Asset, Useful Life		12 years
Customer Relationships [Member] \| Maximum [Member]
Finite-Lived Intangible Asset, Useful Life		13 years
Minimum [Member] \| Apio [Member]
Notes and Advances Receivable, Term		90 days
Minimum [Member] \| Buildings and Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life		3 years
Minimum [Member] \| Other Capitalized Property Plant and Equipment [Member]
Property, Plant and Equipment, Useful Life		3 years
Minimum [Member] \| Software Development [Member]
Property, Plant and Equipment, Useful Life		3 years
Maximum [Member] \| Apio [Member]
Notes and Advances Receivable, Term		270 days
Maximum [Member] \| Buildings and Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life		40 years
Maximum [Member] \| Other Capitalized Property Plant and Equipment [Member]
Property, Plant and Equipment, Useful Life		20 years
Maximum [Member] \| Software Development [Member]
Property, Plant and Equipment, Useful Life		7 years
Apio [Member] \| Apio Cooling, LP [Member]
Investment Ownership Percentage		60.00%
Apio [Member]
Notes and Advances Receivable		$ 0
Apio Cooling, LP [Member]
Stockholders' Equity Attributable to Noncontrolling Interest		$ 1,700,000	$ 1,700,000
Business Acquisition, Percentage of Voting Interests Acquired		60.00%
Aesthetic Sciences [Member]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	$ 793,000
Windset [Member] \| Cost of Sales [Member]
Revenue from Related Parties		$ 537,000	365,000	$ 316,000
Related Party Costs		1,600,000	1,600,000	2,100,000
Windset [Member] \| Accounts Receivable, Related Parties [Member]
Accounts Receivable, Related Parties, Current		306,000	304,000
Windset [Member] \| Accounts Payable, Related Parties [Member]
Accounts Payable, Related Parties		$ 244,000	$ 134,000
Windset [Member]
Investment Ownership Percentage		26.90%	20.10%
Customer Concentration Risk [Member] \| Sales Revenue, Goods, Net [Member] \| Costco and Wal-mart [Member]
Number of Major Customers		2	2
Customer Concentration Risk [Member] \| Sales Revenue, Goods, Net [Member] \| Costco [Member]
Concentration Risk, Percentage		21.00%	21.00%
Customer Concentration Risk [Member] \| Sales Revenue, Goods, Net [Member] \| Wal-mart [Member]
Concentration Risk, Percentage		11.00%	11.00%
Customer Concentration Risk [Member] \| Sales Revenue, Goods, Net [Member] \| International Customers [Member]
Concentration Risk, Percentage		30.00%	29.00%
Customer Concentration Risk [Member] \| Sales Revenue, Goods, Net [Member]
Number of Major Customers		5	5
Concentration Risk, Percentage		46.00%	42.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Costco and Wal-mart [Member]
Number of Major Customers			2
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Costco [Member]
Concentration Risk, Percentage		15.00%	16.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Wal-mart [Member]
Concentration Risk, Percentage		13.00%	12.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Number of Major Customers		2
Product Concentration Risk [Member] \| Sales Revenue, Goods, Net [Member] \| HA Based Biomaterials [Member] \| Ophthalmic [Member]
Concentration Risk, Percentage		60.00%
Product Concentration Risk [Member] \| Sales Revenue, Goods, Net [Member] \| HA Based Biomaterials [Member] \| Orthopedic [Member]
Concentration Risk, Percentage		20.00%
HA Based Biomaterials [Member]
Number of Product Segments		3
Goodwill		$ 13,900,000	$ 13,900,000	13,900,000
Food Products Technology [Member]
Goodwill		35,700,000	35,700,000	35,700,000
Goodwill, Impairment Loss		0	0	0
Stockholders' Equity Attributable to Noncontrolling Interest		$ 1,677,000	1,692,000
Number of Proprietary Platforms		2
Advertising Expense		$ 1,300,000	447,000	445,000
Accounts Receivable, Related Parties, Current		306,000	304,000
Capitalized Computer Software, Additions		509,000	913,000	$ 0
Goodwill		49,620,000	$ 49,620,000
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net		793,000
Deferred Revenue		843,000	$ 1,300,000
Deferred Tax Assets, Valuation Allowance		$ 1,234,000	$ 881,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount \| shares		371,115	333,993	88,022
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price \| $ / shares		$ 14.02	$ 14.15	$ 12.80
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares		$ 3.42	$ 4.41	$ 3.57