Consolidated Statements of Stockholders' Equity (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
Aug. 03, 2019	May 04, 2019	Aug. 04, 2018	May 05, 2018
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Tax Effect of Unrealized Gains (Losses) On Available-For-Sale Securities	$ 262	$ 126	$ 98	$ (122)
Stock Transactions, Parenthetical Disclosures [Abstract]
Dividends per share	$ 0.33	$ 0.33	$ 0.33	$ 0.33
Class A common stock shares sold through employee stock purchase plans	5,402	20,676	2,791	19,763
Exercised	0	0	8,051	0
Class A common stock shares issued through restricted stock grant plans	(9,170)	355,609	13,224	342,341
Retirement of treasury shares - retired shares	0	208,041	423,200	52,904

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Number of shares of common and preferred stock retired from treasury during the period.

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