Note 8 - Related Party Transactions (Details) - Related Party Receivables As a Percentage of Net Accounts Receivable (Alonim Investments Inc. [Member], Accounts Receivable [Member], Customer Concentration Risk [Member])	9 Months Ended	12 Months Ended
	Dec. 28, 2014	Mar. 30, 2014
Alonim Investments Inc. [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Related Party Transaction [Line Items]
Alonim	3.00%	18.00%