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Note 2 - Cash, Cash Equivalents and Marketable Securities - Schedule of Cash, Cash Equivalents and Marketable Securities (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 03, 2018
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Book Value $ 8,501    
Net Unrealized Gains (Losses) (5)    
Fair Value 8,496    
Fair value - cash on hand 40,628 62,710    
Total cash, cash equivalents and marketable securities 40,628 71,206    
Less: Assets available for sale (2,000) (2,000)    
Cash, cash equivalents and marketable securities 38,628 69,206    
Cash and Cash Equivalents, at Carrying Value, Ending Balance 38,628 64,425 $ 63,790 $ 83,502
Short-term marketable securities 4,781    
Long-term marketable securities    
38,628 69,206    
UNITED STATES        
Fair value - cash on hand 6,270 9,378    
Overseas [Member]        
Fair value - cash on hand 34,358 53,332    
Money Market Funds [Member]        
Book Value 3,715    
Net Unrealized Gains (Losses)    
Fair Value 3,715    
Corporate Bond Securities [Member]        
Book Value 3,506    
Net Unrealized Gains (Losses) (1)    
Fair Value 3,505    
Fixed Income Funds [Member]        
Book Value 1,280    
Net Unrealized Gains (Losses) (4)    
Fair Value $ 1,276