v3.26.1
Note 4 - Fair Value Measurements - Schedule of Fair Value Hierarchy (Details) - EBP 16-0733425 003 [Member] - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value $ 284,574,360 $ 246,152,446
Investments, at fair value 284,574,360 246,152,446
Mutual Fund [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 101,327,072 84,923,343
Investments, at fair value 101,327,072 84,923,343
Seneca Foods Corporation Employer Stock Fund [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 54,379,151 41,241,181
Investments, at fair value 54,379,151 41,241,181
Common Collective Trusts [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 123,016,020 114,738,901
Investments, at fair value 123,016,020 114,738,901
Total Assets in the Fair Value Hierarchy [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 278,722,243 240,903,425
Investments, at fair value 278,722,243 240,903,425
Investments Measured at Net Asset Value [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value [1] 5,852,117 5,249,021
Investments, at fair value [1] 5,852,117 5,249,021
Fair Value Measured at Net Asset Value Per Share [Member] | Variable Annuity [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 5,852,117 5,249,021
Investments, at fair value 5,852,117 5,249,021
Fair Value, Inputs, Level 1 [Member] | Mutual Fund [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 101,327,072 84,923,343
Investments, at fair value 101,327,072 84,923,343
Fair Value, Inputs, Level 1 [Member] | Seneca Foods Corporation Employer Stock Fund [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 54,379,151 41,241,181
Investments, at fair value 54,379,151 41,241,181
Fair Value, Inputs, Level 1 [Member] | Common Collective Trusts [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 0 0
Investments, at fair value 0 0
Fair Value, Inputs, Level 1 [Member] | Total Assets in the Fair Value Hierarchy [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 155,706,223 126,164,524
Investments, at fair value 155,706,223 126,164,524
Fair Value, Inputs, Level 2 [Member] | Mutual Fund [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 0 0
Investments, at fair value 0 0
Fair Value, Inputs, Level 2 [Member] | Seneca Foods Corporation Employer Stock Fund [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 0 0
Investments, at fair value 0 0
Fair Value, Inputs, Level 2 [Member] | Common Collective Trusts [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 123,016,020 114,738,901
Investments, at fair value 123,016,020 114,738,901
Fair Value, Inputs, Level 2 [Member] | Total Assets in the Fair Value Hierarchy [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 123,016,020 114,738,901
Investments, at fair value 123,016,020 114,738,901
Fair Value, Inputs, Level 3 [Member] | Mutual Fund [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 0 0
Investments, at fair value 0 0
Fair Value, Inputs, Level 3 [Member] | Seneca Foods Corporation Employer Stock Fund [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 0 0
Investments, at fair value 0 0
Fair Value, Inputs, Level 3 [Member] | Common Collective Trusts [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 0 0
Investments, at fair value 0 0
Fair Value, Inputs, Level 3 [Member] | Total Assets in the Fair Value Hierarchy [Member]    
Financial assets:    
EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value 0 0
Investments, at fair value $ 0 $ 0
[1] In accordance with FASB ASC 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statements of net assets available for benefits.