Indemnification Receivable

No definition available.

Name:	lndc_IndemnificationReceivable
Namespace Prefix:	lndc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The receivable recorded for the repayment of litigation that has already been paid by the company and is being reimbursed for.

+ References

No definition available.

+ Details

Name:	lndc_LitigationRepaymentReceivable
Namespace Prefix:	lndc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Litigation Repayment Receivable, Allowance For Credit Loss

+ References

No definition available.

+ Details

Name:	lndc_LitigationRepaymentReceivableAllowanceForCreditLoss
Namespace Prefix:	lndc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Litigation Settlement, Number Of Installments

+ References

No definition available.

+ Details

Name:	lndc_LitigationSettlementNumberOfInstallments
Namespace Prefix:	lndc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Litigation Settlement, Number Of Installments Paid

+ References

No definition available.

+ Details

Name:	lndc_LitigationSettlementNumberOfInstallmentsPaid
Namespace Prefix:	lndc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Litigation Settlement, Percentage Share

+ References

No definition available.

+ Details

Name:	lndc_LitigationSettlementPercentageShare
Namespace Prefix:	lndc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number Of Former And Current Employees Involved In Matter

+ References

No definition available.

+ Details

Name:	lndc_NumberOfFormerAndCurrentEmployeesInvolvedInMatter
Namespace Prefix:	lndc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Reimbursement Payable

+ References

No definition available.

+ Details

Name:	lndc_ReimbursementPayable
Namespace Prefix:	lndc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Unsuccessful Attempts To Unionize

+ References

No definition available.

+ Details

Name:	lndc_UnsuccessfulAttemptsToUnionize
Namespace Prefix:	lndc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

No definition available.

+ Details

Name:	us-gaap_LossContingencyNumberOfPlaintiffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(17))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(19))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(25))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount purchased during the period under an unrecorded unconditional purchase obligation (for example, under the take-or-pay or throughput contract).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308

+ Details

Name:	us-gaap_UnrecordedUnconditionalPurchaseObligationPurchases
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	srt_LitigationCaseAxis=lndc_DiscriminationAndWrongfulTerminationAndWageAndHourClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=lndc_PacificHarvestMember
Namespace Prefix:
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Balance Type:
Period Type:

Commitments and Contingencies (Details) $ in Millions	12 Months Ended
Commitments and Contingencies (Details) $ in Millions	May 31, 2020 USD ($) employee attemptsToUnionize plaintiff	May 26, 2019 USD ($)	May 27, 2018 USD ($)	May 28, 2017 installment
Loss Contingencies [Line Items]
Purchase commitment	$ 87.7
Purchases related to commitments	$ 3.4	$ 0.5	$ 0.0
Settlement agreement, number of installments \| installment				3
Settlement agreement, number of installments paid \| installment				2
Discrimination and Wrongful Termination and Wage and Hour Claims
Loss Contingencies [Line Items]
Settlement agreement, percentage share				50.00%
Discrimination and Wrongful Termination and Wage and Hour Claims \| Pacific Harvest
Loss Contingencies [Line Items]
Unsuccessful attempts to unionize \| attemptsToUnionize	3
Number of former and current employees involved in matter \| employee	100
Number of individual arbitrations \| plaintiff	100
Settlement agreement, percentage share				50.00%
Reimbursement payable	$ 2.1
Litigation repayment receivable	1.2
Litigation repayment receivable, reserve for collections	1.2
Indemnification receivable	$ 1.2