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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) (USD $) | 9 Months Ended | 3 Months Ended | 0 Months Ended | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Mar. 01, 2015 | Mar. 01, 2015 | Jul. 15, 2014 | Feb. 15, 2011 | Oct. 29, 2014 | May 25, 2014 | Jul. 25, 2013
Product Information [Line Items] |  |  |  |  |  |  |
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net | $ 793,000 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet |  |  |  |  |  |
Payments to Acquire Investments | 18,000,000 us-gaap_PaymentsToAcquireInvestments |  |  |  |  |  |
HA Based Biomaterials [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Number of Product Segments | 3 lndc_NumberOfProductSegments / us-gaap_StatementBusinessSegmentsAxis = lndc_HAbasedBiomaterialsMember |  |  |  |  |  |
Landec Long-Term Incentive Plan [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Long-term Incentive Plan, Term |  | 3 years |  |  |  |  |
Bonus Under Long-term Incentive Plan [Member] | Landec Long-Term Incentive Plan [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Employee-related Liabilities |  |  |  |  |  |  | 2,000,000 us-gaap_EmployeeRelatedLiabilitiesCurrentAndNoncurrent / us-gaap_NatureOfExpenseAxis = lndc_BonusUnderLongTermIncentivePlanMember / us-gaap_PlanNameAxis = lndc_LandecLongTermIncentivePlanMember
Decrease in Selling, General and Administrative Expenses | 677,000 lndc_DecreaseInSellingGeneralAndAdministrativeExpenses / us-gaap_NatureOfExpenseAxis = lndc_BonusUnderLongTermIncentivePlanMember / us-gaap_PlanNameAxis = lndc_LandecLongTermIncentivePlanMember |  |  |  |  |  |
Aesthetic Sciences [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net |  | 793,000 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet / invest_InvestmentAxis = lndc_AestheticSciencesMember |  |  |  |  |
Customer Relationships [Member] | Maximum [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 13 years |  |  |  |  |  |
Customer Relationships [Member] | Minimum [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 12 years |  |  |  |  |  |
Cash and Cash Equivalents [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Money Market Funds, at Carrying Value | 1,500,000 us-gaap_MoneyMarketFundsAtCarryingValue / us-gaap_FairValueByAssetClassAxis = us-gaap_CashAndCashEquivalentsMember | 1,500,000 us-gaap_MoneyMarketFundsAtCarryingValue / us-gaap_FairValueByAssetClassAxis = us-gaap_CashAndCashEquivalentsMember |  |  |  | 1,500,000 us-gaap_MoneyMarketFundsAtCarryingValue / us-gaap_FairValueByAssetClassAxis = us-gaap_CashAndCashEquivalentsMember |
Apio Cooling, LP [Member] | Apio [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Investment Ownership Percentage | 60.00%lndc_InvestmentOwnershipPercentage / us-gaap_CounterpartyNameAxis = lndc_ApioCoolingLPMember / dei_LegalEntityAxis = lndc_ApioMember | 60.00%lndc_InvestmentOwnershipPercentage / us-gaap_CounterpartyNameAxis = lndc_ApioCoolingLPMember / dei_LegalEntityAxis = lndc_ApioMember |  |  |  |  |
Windset [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Investment Ownership Percentage | 26.90%lndc_InvestmentOwnershipPercentage / us-gaap_CounterpartyNameAxis = lndc_WindsetMember | 26.90%lndc_InvestmentOwnershipPercentage / us-gaap_CounterpartyNameAxis = lndc_WindsetMember | 26.90%lndc_InvestmentOwnershipPercentage / us-gaap_CounterpartyNameAxis = lndc_WindsetMember |  |  |  |
Windset [Member] | Apio [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Payments to Acquire Investments |  |  | 11,000,000 us-gaap_PaymentsToAcquireInvestments / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / dei_LegalEntityAxis = lndc_ApioMember |  |  |  |
Windset [Member] | Common Stock [Member] | Apio [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Investment In Non Public Company Shares |  |  | 68 lndc_InvestmentInNonPublicCompanyShares / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / us-gaap_EquityInterestIssuedOrIssuableByTypeAxis = us-gaap_CommonStockMember / dei_LegalEntityAxis = lndc_ApioMember | 201 lndc_InvestmentInNonPublicCompanyShares / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / us-gaap_EquityInterestIssuedOrIssuableByTypeAxis = us-gaap_CommonStockMember / dei_LegalEntityAxis = lndc_ApioMember |  |  |
Payments to Acquire Investments |  |  |  | 201 us-gaap_PaymentsToAcquireInvestments / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / us-gaap_EquityInterestIssuedOrIssuableByTypeAxis = us-gaap_CommonStockMember / dei_LegalEntityAxis = lndc_ApioMember |  |  |
Windset [Member] | Junior Preferred Shares [Member] | Apio [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Investment In Non Public Company Shares |  |  | 51,211 lndc_InvestmentInNonPublicCompanyShares / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / us-gaap_EquityInterestIssuedOrIssuableByTypeAxis = lndc_JuniorPreferredSharesMember / dei_LegalEntityAxis = lndc_ApioMember |  |  |  |
Windset [Member] | Senior A Preferred Stock [Member] | Apio [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Investment In Non Public Company Shares |  |  |  | 150,000 lndc_InvestmentInNonPublicCompanyShares / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / us-gaap_EquityInterestIssuedOrIssuableByTypeAxis = lndc_SeniorAPreferredStockMember / dei_LegalEntityAxis = lndc_ApioMember |  |  |
Payments to Acquire Investments |  |  |  | 15,000,000 us-gaap_PaymentsToAcquireInvestments / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / us-gaap_EquityInterestIssuedOrIssuableByTypeAxis = lndc_SeniorAPreferredStockMember / dei_LegalEntityAxis = lndc_ApioMember |  |  |
Windset [Member] | Senior B Preferred Stock [Member] | Apio [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Investment In Non Public Company Shares |  |  |  |  | 70,000 lndc_InvestmentInNonPublicCompanyShares / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / us-gaap_EquityInterestIssuedOrIssuableByTypeAxis = lndc_SeniorBPreferredStockMember / dei_LegalEntityAxis = lndc_ApioMember |  |
Payments to Acquire Investments |  |  |  |  | 7,000,000 us-gaap_PaymentsToAcquireInvestments / us-gaap_CounterpartyNameAxis = lndc_WindsetMember / us-gaap_EquityInterestIssuedOrIssuableByTypeAxis = lndc_SeniorBPreferredStockMember / dei_LegalEntityAxis = lndc_ApioMember |  |
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Orthopedic [Member] | HA Based Biomaterials [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  |  | 20.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_ProductOrServiceAxis = lndc_OrthopedicMember / us-gaap_StatementBusinessSegmentsAxis = lndc_HAbasedBiomaterialsMember |
Sales Revenue, Goods, Net [Member] | Product Concentration Risk [Member] | Ophthalmic [Member] | HA Based Biomaterials [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  |  | 60.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_ProductConcentrationRiskMember / us-gaap_ProductOrServiceAxis = lndc_OphthalmicMember / us-gaap_StatementBusinessSegmentsAxis = lndc_HAbasedBiomaterialsMember |
Other Noncurrent Liabilities [Member] | Bonus Under Long-term Incentive Plan [Member] | Landec Long-Term Incentive Plan [Member] |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |
Accrued Bonuses | $ 0 us-gaap_AccruedBonusesCurrentAndNoncurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_NatureOfExpenseAxis = lndc_BonusUnderLongTermIncentivePlanMember / us-gaap_PlanNameAxis = lndc_LandecLongTermIncentivePlanMember | 0 us-gaap_AccruedBonusesCurrentAndNoncurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_NatureOfExpenseAxis = lndc_BonusUnderLongTermIncentivePlanMember / us-gaap_PlanNameAxis = lndc_LandecLongTermIncentivePlanMember |  |  |  | 677,000 us-gaap_AccruedBonusesCurrentAndNoncurrent / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_NatureOfExpenseAxis = lndc_BonusUnderLongTermIncentivePlanMember / us-gaap_PlanNameAxis = lndc_LandecLongTermIncentivePlanMember |

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