Note 2 - Cash, Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 30, 2016	Jan. 30, 2016	May. 02, 2015	Jan. 31, 2015
Corporate Bond Securities [Member]
Book Value	$ 7,035	$ 7,052
Net Unrealized Gains	5	(7)
Fair Value	7,040	7,045
Fixed Income Funds [Member]
Book Value	1,279	1,255
Net Unrealized Gains	23	32
Fair Value	1,302	1,287
Money Market Funds [Member]
Book Value	$ 109	$ 88
Net Unrealized Gains
Fair Value	$ 109	$ 88
UNITED STATES
Fair value - cash on hand	3,884	4,141
Overseas [Member]
Fair value - cash on hand	52,335	59,561
Book Value	8,423	8,395
Net Unrealized Gains	28	25
Fair Value	8,451	8,420
Fair value - cash on hand	56,219	63,702
Total cash, cash equivalents and marketable securities	64,670	72,122
Cash and cash equivalents	56,328	63,790	$ 69,334	$ 83,502
Short-term marketable securities	6,840	4,805
Long-term marketable securities	$ 1,502	$ 3,527