Note L - Stockholders' Equity, Stock Plans and Other Employee Benefit Plans (Tables)

12 Months Ended

Mar. 31, 2024

Notes Tables

Share-Based Payment Arrangement, Cost by Plan [Table Text Block]

	March 31,		March 26,
	2024		2023
Stock options	$	58	$	33
Restricted stock units		675		225
	$	733	$	258

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Weighted-average option fair values	$	16.23
Expected life (years)		4.4
Interest rate		4.31	%
Volatility		24.29	%
Dividend yield		2.56	%

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

March 31, 2024						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
	Shares			Price		Life		Value
Options outstanding – beginning of year		20,000		$	79.20		1.92	$	40
Granted		10,000		$	78.00		4.37		-
Expired		(10,000	)	$	89.90		-		-
Options outstanding - end of year		20,000		$	73.25		3.36	$	23
Options exercisable - end of year		5,000		$	68.50		2.36	$	12

March 26, 2023					Weighted
			Weighted		Average
			Average		Remaining		Aggregate
			Exercise		Contractual		Intrinsic
	Shares		Price		Life		Value
Options outstanding – beginning of year		20,000	$	79.20		2.92
Granted		-		-
Expired		-		-
Exercised		-		-
Options outstanding - end of year		20,000	$	79.20		1.92	$	40
Options exercisable - end of year		12,500	$	85.62		1.05	$	10

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

March 31, 2024				Weighted
				Average
				Grant-date
				Fair value
	Shares			Per share
Unvested restricted stock units – beginning of year		50,000		$	67.59
Granted		-			-
Vested		(10,000	)	$	67.59
Unvested restricted stock units – end of year		40,000		$	67.59

March 26, 2023			Weighted
			Average
			Grant-date
			Fair value
	Shares		Per share
Unvested restricted stock units – beginning of year		-	$	-
Granted		50,000	$	67.59
Vested		-	$	-
Unvested restricted stock units – end of year		50,000	$	67.59