EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Jan. 29, 2011	Oct. 30, 2010	Jul. 31, 2010	May 01, 2010	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Basic and diluted earnings per share [Abstract]
Net income, in thousands	$ 15,824	$ 15,959	$ 5,940	$ 21,337	$ 12,458	$ 12,588	$ 4,013	$ 17,341	$ 59,060	$ 46,400	$ 32,549
Weighted average number of common shares outstanding									26,978,000	28,426,000	28,629,000
Weighted average number of common shares outstanding and dilutive shares									27,506,000	29,033,000	29,089,000
Basic earnings per share	$ 0.60	$ 0.60	$ 0.22	$ 0.78	$ 0.45	$ 0.45	$ 0.14	$ 0.60	$ 2.19	$ 1.63	$ 1.14
Diluted earnings per share	$ 0.59	$ 0.59	$ 0.21	$ 0.76	$ 0.44	$ 0.44	$ 0.14	$ 0.59	$ 2.15	$ 1.60	$ 1.12
Stock Options [Member]
Basic and diluted earnings per share [Abstract]
Dilutive equity awards (in shares)									176,845	264,420	281,213
Antidilutive securities excluded from the computation of earnings per share (in shares)									0	0	304,361
Nonvested Stock Awards [Member]
Basic and diluted earnings per share [Abstract]
Dilutive equity awards (in shares)									351,367	343,024	178,510
Incremental dilutive impact if performance criteria had been achieved (in shares)									65,179
Antidilutive securities excluded from the computation of earnings per share (in shares)									137,800