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Note 3 - Credit Risk (Details) (USD $)
3 Months Ended 12 Months Ended
Sep. 26, 2014
Mar. 31, 2014
Note 3 - Credit Risk (Details) [Line Items]    
Cash, Uninsured Amount (in Dollars) $ 868,000  
Allowance for Doubtful Accounts Receivable (in Dollars) $ 20,000 $ 20,000
Accounts Receivable [Member] | Customer Concentration Risk [Member]
   
Note 3 - Credit Risk (Details) [Line Items]    
Concentration Risk, Number of Customers 2 1
Concentration Risk, Percentage 28.00% 19.00%