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v3.19.3.a.u2

Note 8 - Other Retirement Plans (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Sep. 29, 2019 | Sep. 30, 2018 | Sep. 24, 2017
Employee Benefits and Share-based Compensation | $ 3,849,000 | $ 4,430,000 | $ 4,396,000
GCIU- Employer Retirement Fund [Member] |  |  |
Multiemployer Plans, Withdrawal Obligation | 3,181,000 |  | $ 2,600,000
CWA/ITU Negotiated Pension Plan [Member] |  |  |
Multiemployer Plans, Withdrawal Obligation | $ 3,255,000 |  |

X
- Definition Amount of expense for employee benefit and equity-based compensation. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References No definition available. + Details
Name: | us-gaap_MultiemployerPlansWithdrawalObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_MultiemployerPlanNameAxis=lee_GciuEmployerRetirementFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MultiemployerPlanNameAxis=lee_CwaituNegotiatedPensionPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |