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 Feb. 25, 2018	20,965,144				723,573
Balance at Feb. 25, 2018	$ 2,096	$ 169,011	$ (21,099)	$ 131	$ (14,878)
Net earnings			3,168
Unrealized gain (loss) on marketable securities, net of tax				(16)
Stock options exercised (in shares)					(2,987)
Stock options exercised		(14)			$ 61
Stock-based compensation		201
Cash dividends ($0.10 per share)			(2,023)
Foreign currency translation adjustment for sale of business				(19)
Balance (in shares) at May. 27, 2018	20,965,144				720,586
Balance at May. 27, 2018	$ 2,096	169,198	(19,954)	96	$ (14,817)
Balance (in shares) at Feb. 25, 2018	20,965,144				723,573
Balance at Feb. 25, 2018	$ 2,096	169,011	(21,099)	131	$ (14,878)
Net earnings						$ 9,559
Balance (in shares) at Nov. 25, 2018	20,965,144				685,736
Balance at Nov. 25, 2018	$ 2,096	169,489	(17,615)	241	$ (14,100)
Balance (in shares) at May. 27, 2018	20,965,144				720,586
Balance at May. 27, 2018	$ 2,096	169,198	(19,954)	96	$ (14,817)
Net earnings			2,700
Unrealized gain (loss) on marketable securities, net of tax				108
Stock options exercised (in shares)					(32,550)
Stock options exercised		(93)			$ 670
Stock-based compensation		199
Cash dividends ($0.10 per share)			(2,024)
Foreign currency translation adjustment for sale of business				18
Balance (in shares) at Aug. 26, 2018	20,965,144				688,036
Balance at Aug. 26, 2018	$ 2,096	169,304	(19,278)	222	$ (14,147)
Net earnings			3,691			3,691
Unrealized gain (loss) on marketable securities, net of tax				11
Stock options exercised (in shares)					(2,300)
Stock options exercised		(10)			$ 47
Stock-based compensation		195
Cash dividends ($0.10 per share)			(2,028)
Foreign currency translation adjustment for sale of business				8
Balance (in shares) at Nov. 25, 2018	20,965,144				685,736
Balance at Nov. 25, 2018	$ 2,096	169,489	(17,615)	241	$ (14,100)
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)	159,011	[1]
Net earnings			2,587
Unrealized gain (loss) on marketable securities, net of tax				346
Stock options exercised (in shares)					(6,200)
Stock options exercised		(56)			$ 127
Stock-based compensation		124
Cash dividends ($0.10 per share)			(2,049)
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)	159,011	[1]
Net earnings						$ 7,168
Stock options exercised (in shares)						31,986
Stock-based compensation						$ 257
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)	161,163
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 options exercised (in shares)					(22,974)
Stock options exercised		(179)			$ 473
Stock-based compensation		141
Cash dividends ($0.10 per share)			(2,050)
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 options exercised (in shares)					(2,812)
Stock options exercised		(22)			$ 58
Stock-based compensation		139
Cash dividends ($0.10 per share)			(2,051)
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)	$ 161,163

[1] The balance sheet at March 3, 2019 has been derived from the audited consolidated financial statements at that date.