Note 6 - Related Party Transaction (Details) - Related Party Contributions to Total Net Sales (Alonim Investments Inc. [Member], Customer Concentration Risk [Member], Sales Revenue, Net [Member])	12 Months Ended
Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Alonim Investments Inc. [Member] \| Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Related Party Transaction [Line Items]
Alonim	22.00%	29.00%	30.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

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-Section 50

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

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-Section 50

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

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