Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Mar. 03, 2019	20,965,144				479,191
Balance at Mar. 03, 2019	$ 2,096	$ 169,395	$ (2,605)	$ (22)	$ (9,853)
Net earnings			2,587
Unrealized gain (loss) on marketable securities, net of tax				346
Stock-based compensation		124
Cash dividends ($0.10 per share)			(2,049)
Outstanding options, exercised (in shares)					(6,200)
Stock options exercised		(56)			$ 127
Stock options exercised (in shares)					6,200
Balance (in shares) at Jun. 02, 2019	20,965,144				472,991
Balance at Jun. 02, 2019	$ 2,096	169,463	(2,067)	324	$ (9,726)
Balance (in shares) at Mar. 03, 2019	20,965,144				479,191
Balance at Mar. 03, 2019	$ 2,096	169,395	(2,605)	(22)	$ (9,853)
Net earnings						$ 7,168
Balance (in shares) at Dec. 01, 2019	20,965,144				447,205
Balance at Dec. 01, 2019	$ 2,096	169,542	(1,587)	307	$ (9,195)
Balance (in shares) at Jun. 02, 2019	20,965,144				472,991
Balance at Jun. 02, 2019	$ 2,096	169,463	(2,067)	324	$ (9,726)
Net earnings			2,135
Unrealized gain (loss) on marketable securities, net of tax				193
Stock-based compensation		141
Cash dividends ($0.10 per share)			(2,050)
Outstanding options, exercised (in shares)					22,974
Stock options exercised		(179)			$ 473
Stock options exercised (in shares)					(22,974)
Balance (in shares) at Sep. 01, 2019	20,965,144				450,017
Balance at Sep. 01, 2019	$ 2,096	169,425	(1,982)	517	$ (9,253)
Net earnings			2,446			2,446
Unrealized gain (loss) on marketable securities, net of tax				(210)
Stock-based compensation		139
Cash dividends ($0.10 per share)			(2,051)
Stock options exercised		(22)			$ 58
Balance (in shares) at Dec. 01, 2019	20,965,144				447,205
Balance at Dec. 01, 2019	$ 2,096	169,542	(1,587)	307	$ (9,195)
Balance (in shares) at Mar. 01, 2020	20,965,144				446,321
Balance at Mar. 01, 2020	$ 2,096	169,862	(21,774)	668	$ (9,177)	141,675	[1]
Net earnings			1,957
Unrealized gain (loss) on marketable securities, net of tax				204
Stock-based compensation		43
Repurchase of treasury shares (in shares)					137,397
Repurchase of treasury shares					$ (1,644)
Cash dividends ($0.10 per share)			(2,038)
Balance (in shares) at May. 31, 2020	20,965,144				583,718
Balance at May. 31, 2020	$ 2,096	169,905	(21,855)	872	$ (10,821)
Balance (in shares) at Mar. 01, 2020	20,965,144				446,321
Balance at Mar. 01, 2020	$ 2,096	169,862	(21,774)	668	$ (9,177)	141,675	[1]
Net earnings						$ 3,832
Outstanding options, exercised (in shares)
Stock options exercised (in shares)
Balance (in shares) at Nov. 29, 2020	20,965,144				583,718
Balance at Nov. 29, 2020	$ 2,096	170,004	(24,056)	272	$ (10,821)	$ 137,495
Balance (in shares) at May. 31, 2020	20,965,144				583,718
Balance at May. 31, 2020	$ 2,096	169,905	(21,855)	872	$ (10,821)
Net earnings			954
Unrealized gain (loss) on marketable securities, net of tax				(203)
Stock-based compensation		50
Cash dividends ($0.10 per share)			(2,038)
Balance (in shares) at Aug. 30, 2020	20,965,144				583,718
Balance at Aug. 30, 2020	$ 2,096	169,955	(22,939)	669	$ (10,821)
Net earnings			921			921
Unrealized gain (loss) on marketable securities, net of tax				(397)
Stock-based compensation		49
Cash dividends ($0.10 per share)			(2,038)
Balance (in shares) at Nov. 29, 2020	20,965,144				583,718
Balance at Nov. 29, 2020	$ 2,096	$ 170,004	$ (24,056)	$ 272	$ (10,821)	$ 137,495

[1] The balance sheet at March 1, 2020 has been derived from the audited consolidated financial statements at that date.