Note 5 - Earnings Per Share (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		95 Months Ended
	Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	16,667	0	16,667	0
Stock Repurchase Programs, 2011 and 2018 [Member]
Treasury Stock, Shares, Acquired	1,530,478	0	1,530,478	100,000	4,200,000
Treasury Stock, Value, Acquired, Cost Method					$ 107.8
Stock Repurchase Program, 2011 [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	2,500,000		2,500,000		2,500,000
Stock Repurchase Program, 2018 [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	2,500,000		2,500,000		2,500,000