XML 45 R36.htm IDEA: XBRL DOCUMENT
v3.23.3

Note 1 - Basis of Preparation and Presentation (Details Textual) | Sep. 30, 2023
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Number of States in which Entity Operates | 8
Seneca Food Plants [Member] |
Number of Real Estate Properties | 26

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=senea_SenecaFoodPlantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |