Note H - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Mar. 27, 2022	Mar. 28, 2021
Effective Income Tax Rate Reconciliation, Percent, Total	26.70%	27.70%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 403	$ 397
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	271	256
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total	15	$ 3
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 16