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Note 14 - Business Segment Reporting (Detail) | 9 Months Ended
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Feb. 24, 2013 | Feb. 26, 2012
Number of Operating Segments | 3 |
Entity-Wide Revenue Major Customer Number | 5 |
Entity-Wide Revenue Top Customers Percentage | 39.00% | 44.00%
Food Products Technology [Member] |  |
Entity-Wide Revenue, Major Customer, Percentage | 14.00% | 17.00%

X
- Definition Entity-wide revenue major top five customer number. + References No definition available. + Details
Name: | lndc_EntityWideRevenueMajorCustomerNumber
Namespace Prefix: | lndc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of revenue generated from top five external customers that accounts for 10 percent or more of an entity's revenues. + References No definition available. + Details
Name: | lndc_EntityWideRevenueTopCustomersPercentage
Namespace Prefix: | lndc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues. + References No definition available. + Details
Name: | us-gaap_EntityWideRevenueMajorCustomerPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
Name: | us-gaap_NumberOfOperatingSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration