Note 16 - Shareholders' Equity (Details Textual) - shares	12 Months Ended			101 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018	Feb. 01, 2020	Sep. 02, 2019	Dec. 14, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	5,000
Stock Repurchase Program, 2018 [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased						2,500,000
Stock Repurchased During Period, Shares	1,704,240
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	553,611			553,611
Stock Repurchase Program, 2019 [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased					5,000,000.0
Stock Repurchase Program, 2011 [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	2,500,000			2,500,000
Stock Repurchased During Period, Shares				2,500,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	0			0
Repurchases Related To Employee Share Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	100,728	145,357	141,713