Note B - Summary of Significant Accounting Policies - Revenues by Geographical Market (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2024	Mar. 26, 2023
Revenues	$ 138,610	$ 130,785
UNITED STATES
Revenues	133,205	124,887
Non-US [Member]
Revenues	$ 5,405	$ 5,898

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details