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Note 8 - Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 6 Months Ended 20 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
May 04, 2019
Aug. 31, 2017
Stock Repurchased and Retired During Period, Value $ 699 $ 1,429    
The August 2017 Share Repurchase Program [Member]            
Stock Repurchase Program, Authorized Amount           $ 20,000
Stock Repurchased and Retired During Period, Shares         1.3  
Share Price         $ 8.75  
Stock Repurchased and Retired During Period, Value         $ 11,200  
Stock Repurchase Program, Remaining Authorized Repurchase Amount         $ 8,800