Note 7 - Debt - Long-term Debt (Details) (Parentheticals) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Nov. 27, 2016	May 29, 2016
Term Loan [Member]
Debt Instrument, Periodic Payment	$ 1,250
Term Loan [Member] \| Minimum [Member]
Interest rate	1.25%
Term Loan [Member] \| Maximum [Member]
Interest rate	2.25%
Real Estate Loan [Member]
Debt Instrument, Periodic Payment	$ 133,060	$ 133,060
Interest rate	4.02%	4.02%
Capital Equipment Loan 1 [Member]
Debt Instrument, Periodic Payment	$ 175,356	$ 175,356
Interest rate	4.39%	4.39%
Capital Equipment Loan 2 [Member]
Debt Instrument, Periodic Payment	$ 95,120	$ 95,120
Interest rate	3.68%	3.68%
Capital Equipment Loan 3 [Member]
Debt Instrument, Periodic Payment	$ 55,828	$ 55,828
Interest rate	3.74%	3.74%
Capital Equipment Loan 4 [Member]
Debt Instrument, Periodic Payment	$ 68,274	$ 68,274
Interest rate	2.79%	2.79%
Real Estate Loan 2 [Member]
Debt Instrument, Periodic Payment	$ 32,000
Real Estate Loan 2 [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	2.25%
Capital Equipment Loan 5 [Member]
Debt Instrument, Periodic Payment	$ 108,000
Capital Equipment Loan 5 [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	2.25%
Capital Equipment Loan 6 [Member]
Debt Instrument, Periodic Payment	$ 75,000
Capital Equipment Loan 6 [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Interest rate	2.92%
Industrial Revenue Bonds [Member]
Interest rate		0.59%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_RealEstateLoan1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_CapitalEquipmentLoan1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_CapitalEquipmentLoan2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_CapitalEquipmentLoan3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_CapitalEquipmentLoan4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_RealEstateLoan2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_CapitalEquipmentLoan5Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_CapitalEquipmentLoan6Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=lndc_IndustrialRevenueBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: