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Note 13 - Employee Savings and Investment Plans (Details) (USD $) | 12 Months Ended
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May 26, 2013 | May 27, 2012 | May 29, 2011
Note 13 - Employee Savings and Investment Plans (Details) [Line Items] |  |  |
Defined Contribution Plan Percent of Employee Contributions Matched By Employer | 67.00% |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years |  |
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage | 25.00% |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount (in Dollars) | $ 939,000 | $ 789,000 | $ 720,000
Maximum Contribution for Employer Match [Member] |  |  |
Note 13 - Employee Savings and Investment Plans (Details) [Line Items] |  |  |
Defined Contribution Plans Employee Contributions Eligible For Employer Match | 6.00% |  |
Minimum [Member] |  |  |
Note 13 - Employee Savings and Investment Plans (Details) [Line Items] |  |  |
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent | 1.00% |  |
Maximum [Member] |  |  |
Note 13 - Employee Savings and Investment Plans (Details) [Line Items] |  |  |
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent | 50.00% |  |

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- Definition Defined contribution plan percent of employee contributions matched by employer. + References No definition available. + Details
Name: | lndc_DefinedContributionPlanPercenOfEmployeeContributionsMatchedByEmployer
Namespace Prefix: | lndc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Defined contribution plans employee contributions eligible for employer match. + References No definition available. + Details
Name: | lndc_DefinedContributionPlansEmployeeContributionsEligibleForEmployerMatch
Namespace Prefix: | lndc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | lndc_Note13EmployeeSavingsandInvestmentPlansDetailsLineItems
Namespace Prefix: | lndc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employer's matching contributions to a defined contribution plan that vests in a given year. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
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