Note L - Stockholders' Equity, Stock Plans and Other Employee Benefit Plans - Compensation Cost Charged to Expense Under All Stock-based Incentive Awards (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 28, 2021	Mar. 29, 2020
Share-based Compensation Expense	$ 116	$ 116
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Expense	85	85
Restricted Stock [Member]
Share-based Compensation Expense	$ 31	$ 31

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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