XML 34 R67.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Segment Information (narrative) (detail) | Mar. 31, 2013 | Mar. 31, 2012 | Mar. 31, 2011
--- | --- | --- | ---
Export [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Sales Percentage | 9.80% | 9.40% | 8.90%
Green Giant Vegetables [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Sales Percentage | 13.00% | 13.00% | 16.00%
Fruit And Vegetable Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Assets Percentage | 99.00% | 99.00% | 99.00%
Income Loss Fom Continuing Operations Before Income Taxes Percentage | 101.00% | 107.00% | 105.00%

X
- Definition Percentage of total assets + References No definition available. + Details
Name: | senea_AssetsPercentage
Namespace Prefix: | senea_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Income Loss from continuing operation before taxes as a percentage + References No definition available. + Details
Name: | senea_IncomeLossFomContinuingOperationsBeforeIncomeTaxesPercentage
Namespace Prefix: | senea_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of net product revenue to total net revenue from the sale of goods as of year end. + References No definition available. + Details
Name: | us-gaap_SalesRevenueGoodsNetPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration