Note 5 - Debt (Details) - Total Outstanding Debt (USD $) In Thousands, unless otherwise specified	Dec. 26, 2014	Mar. 31, 2014
Total Outstanding Debt [Abstract]
Bank term loan	$ 83us-gaap_LoansPayableToBank	$ 306us-gaap_LoansPayableToBank
Bank line of credit	1,546us-gaap_LineOfCredit	2,147us-gaap_LineOfCredit
MEDC/MSF loans	654us-gaap_UnsecuredDebt	654us-gaap_UnsecuredDebt
Partners for Growth (PFG) loan, net of debt discount	1,079us-gaap_SecuredDebt	1,508us-gaap_SecuredDebt
Capital leases	37us-gaap_CapitalLeaseObligations	56us-gaap_CapitalLeaseObligations
Total	$ 3,399us-gaap_DebtInstrumentCarryingAmount	$ 4,671us-gaap_DebtInstrumentCarryingAmount

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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