Note 5 - Stock-based Compensation (Tables)

12 Months Ended

Feb. 26, 2023

Notes Tables

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

	Fiscal Year
	2023				2022				2021
Weighted average fair value per share of option grants			$2.66				$2.76				$2.12
Risk-free interest rates		2.69%	-	3.64%		0.74%	-	1.85%		0.23%	-	0.42%
Expected stock price volatility		27.9%	-	28.3%		27.8%	-	29.2%		26.9%	-	30.0%
Expected dividend yields		3.17%	-	3.32%		2.73%	-	3.07%		3.18%	-	3.49%
Estimated option terms (in years)		5.4	-	8.1		4.4	-	7.6		4.3	-	7.6

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

	Outstanding Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Balance, March 1, 2020		510,634		$	12.45			$	597
Granted		132,100			12.55
Exercised		(1,450	)		8.02
Terminated or expired		(6,750	)		13.01
Balance, February 28, 2021		634,534		$	12.47			$	730
Granted		147,750			13.82
Exercised		(75,334	)		9.81
Terminated or expired		(58,650	)		13.96
Balance, February 27, 2022		648,300		$	12.96			$	428
Granted		134,100			12.08
Exercised		(13,000	)		10.67
Terminated or expired		(98,975	)		13.13
Balance, February 26, 2023		670,425		$	12.80		5.80	$	2,159
Vested and exercisable, February 26, 2023		376,613		$	12.67		3.87	$	1,262
Expected to vest, February 26, 2023		640,256		$	12.67		5.80	$	2,145

Schedule of Nonvested Share Activity [Table Text Block]

	Shares Subject to Options			Weighted Average Grant Date Fair Value
Non-vested, beginning of year		257,025		$	2.75
Granted		134,100			2.58
Vested		(80,925	)		2.85
Terminated or expired		(16,387	)		2.67
Non-vested, end of year		293,813		$	2.65