Note D - Income Per Share - Earnings Per Share Reconciliation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2024	Sep. 24, 2023	Sep. 29, 2024	Sep. 24, 2023
Net income	$ 6,030	$ 5,711	$ 15,307	$ 13,099
Basic (in shares)	4,085	4,080	4,085	4,080
Effect of dilutive share-based awards (in shares)	10	12	7	10
Diluted (in shares)	4,095	4,092	4,092	4,090
Basic (in dollars per share)	$ 1.48	$ 1.4	$ 3.75	$ 3.21
Diluted (in dollars per share)	$ 1.47	$ 1.4	$ 3.74	$ 3.2
Anti-dilutive share-based awards (in shares)	120	10	120	10