Note B - Adoption of New Accounting Standard (Details Textual) - USD ($) $ in Thousands		3 Months Ended
	Jun. 25, 2023	Jun. 25, 2023	Mar. 26, 2023
Retained Earnings (Accumulated Deficit)	$ (15,398)	$ (15,398)	$ (20,559)
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)		252
Retained Earnings (Accumulated Deficit)	187	$ 187
Increase (Decrease) in Income Taxes	$ 65