XML 44 R32.htm IDEA: XBRL DOCUMENT v3.25.2

Note 1 - Basis of Preparation and Presentation (Details Textual)	Jun. 28, 2025
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: