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Note 1 - Significant Accounting Policies - Estimated Useful Lives of Property and Equipment (Details) | 12 Months Ended
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Sep. 27, 2020
Building Improvements [Member] | Minimum [Member] |
Property and equipment, useful life (Year) | 4 years
Building Improvements [Member] | Maximum [Member] |
Property and equipment, useful life (Year) | 40 years
Printing Press and Insertion Equipment [Member] | Minimum [Member] |
Property and equipment, useful life (Year) | 5 years
Printing Press and Insertion Equipment [Member] | Maximum [Member] |
Property and equipment, useful life (Year) | 28 years
Property, Plant and Equipment, Other Types [Member] | Minimum [Member] |
Property and equipment, useful life (Year) | 3 years
Property, Plant and Equipment, Other Types [Member] | Maximum [Member] |
Property and equipment, useful life (Year) | 17 years

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=lee_PrintingPressAndInsertionEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_PropertyPlantAndEquipmentOtherTypesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |