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Condensed Consolidated Statements of Stockholders' Equity (Parentheticals) - USD ($)
3 Months Ended
Apr. 29, 2023
Apr. 30, 2022
Statement of Stockholders' Equity [Abstract]    
Tax Effect of Unrealized Gains (Losses) On Available-For-Sale Securities $ 107,000 $ (362,000)
Stock Transactions, Parenthetical Disclosures [Abstract]    
Dividends per share $ 0.17 $ 0.17