Consolidated Statements of Stockholders' Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
us-gaap_StatementOfStockholdersEquityAbstract
Tax Effect of Unrealized Gains (Losses) On Available-For-Sale Securities	$ 453	$ 77	$ 28
Stock Transactions, Parenthetical Disclosures [Abstract]
Dividends per share	$ 1.32	$ 1.32	$ 1.32
Class A common stock shares sold through employee stock purchase plans	48,626	44,770	34,238
Exercised	0	8,051	4,025
Class A common stock shares issued through restricted stock grant plans	321,484	341,744	169,907
Repurchase of treasury shares	622,480	593,404	2,082,535