Note 5 - Stock-based Compensation (Tables)

12 Months Ended

Feb. 27, 2022

Notes Tables

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

	Fiscal Year
	2022			2021			2020
Weighted average fair value per share of option grants		$2.76			$2.12			$3.97
Risk-free interest rates	0.74%	-	1.85%	0.23%	-	0.42%	2.24%	-	2.26%
Expected stock price volatility	27.8%	-	29.2%	26.9%	-	30.0%	30.4%	-	31.5%
Expected dividend yields	2.73%	-	3.07%	3.18%	-	3.49%		2.43%
Estimated option terms (in years)	4.4	-	7.6	4.3	-	7.6	4.3	-	5.8

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 3, 2019		540,709		$	13.49			$	70
Granted		114,450			15.44
Exercised		(32,873	)		11.64
Terminated or expired		(111,652	)		15.95
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		5.38	$	428
Vested and exercisable, February 27, 2022		391,275		$	12.47		3.32	$	450
Expected to vest, February 27, 2022		609,402		$	12.47		5.38	$	701

Schedule of Nonvested Share Activity [Table Text Block]

	Shares Subject to Options			Weighted Average Grant Date Fair Value
Non-vested, beginning of year		208,375		$	2.80
Granted		147,750			2.78
Vested		(60,400	)		2.91
Terminated or expired		(38,700	)		2.86
Non-vested, end of year		257,025		$	2.75