INTEREST INCOME (EXPENSE), NET (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 28, 2012	Apr. 30, 2011
Components of interest income (expense), net
Interest income	$ 223	$ 238
Tax-exempt interest income	0	5
Total interest income	223	243
Less:
Interest expense - credit facilities	37	63
Unused line fee	114	304
Amortization of deferred financing costs	91	145
Other interest and fees	32	2
Total interest expense	274	514
Interest (expense), net	$ (51)	$ (271)