INTEREST INCOME (EXPENSE), NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Components of interest income (expense), net
Interest income	$ 414	$ 218	$ 1,095	$ 736
Less:
Interest expense - credit facilities	15	16	44	55
Unused line fee	119	121	371	317
Amortization of deferred financing costs	68	74	204	250
Other interest and fees	16	29	64	49
Total interest expense	572	472	1,503	1,371
Interest (expense), net	(158)	(254)	(408)	(635)
interestrevolvingloan [Member]
Less:
Interest expense - credit facilities	$ 354	$ 232	$ 820	$ 700