Consolidated Statements of Shareholders' Equity - 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. 02, 2014	20,882,844				4,074
Balance at Mar. 02, 2014	$ 2,088	$ 161,677	$ 35,651	$ 1,221	$ (94)
Net earnings			20,043			$ 20,043
Foreign currency translation				185		$ 185
Unrealized holding gains (losses) arising during the period				62
Stock options exercised (in shares)	79,800					79,800
Stock options exercised	$ 8	1,724
Stock-based compensation		1,418
Repurchase of treasury shares (in shares)					126,567
Repurchase of treasury shares					$ (2,738)
Cash dividends			(39,646)
Balance (in shares) at Mar. 01, 2015	20,962,644				130,641
Balance at Mar. 01, 2015	$ 2,096	164,819	16,048	1,468	$ (2,832)
Net earnings			18,029			$ 18,029
Foreign currency translation				62		$ 62
Unrealized holding gains (losses) arising during the period				(59)
Stock options exercised (in shares)	2,500					2,500
Stock options exercised		44
Stock-based compensation		1,535
Repurchase of treasury shares (in shares)					599,832
Repurchase of treasury shares					$ (12,188)
Cash dividends			(8,155)
Balance (in shares) at Feb. 28, 2016	20,965,144				730,473
Balance at Feb. 28, 2016	$ 2,096	166,398	25,922	1,471	$ (15,020)	$ 180,867
Net earnings			9,283			9,283
Foreign currency translation				30		$ 30
Unrealized holding gains (losses) arising during the period				(475)
Stock options exercised (in shares)
Stock-based compensation		1,214
Cash dividends			(8,093)
Balance (in shares) at Feb. 26, 2017	20,965,144				730,473
Balance at Feb. 26, 2017	$ 2,096	$ 167,612	$ 27,112	$ 1,026	$ (15,020)	$ 182,826