Note H - Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 26, 2023
Unrecognized tax benefits, beginning of year	$ 432	$ 403
Decreases of tax positions taken in prior years	(19)	(16)
Increases based on tax positions taken in current year	52	45
Unrecognized tax benefits, end of year	$ 465	$ 432