QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
QUARTERLY FINANCIAL DATA (UNAUDITED) [Abstract]
Net sales	$ 266,738	$ 237,834	$ 187,958	$ 275,688	$ 246,929	$ 237,006	$ 206,933	$ 282,092	$ 968,219	$ 972,960	$ 943,104
Gross profit	83,977	76,113	54,408	98,218	81,512	83,825	68,257	105,002	312,717	338,596	332,715
Operating income	15,884	11,787	(5,162)	34,168	19,132	23,173	10,118	44,342	56,678	96,764	112,004
Net income	$ 9,733	$ 7,564	$ (3,176)	$ 20,910	$ 12,055	$ 14,604	$ 6,510	$ 27,906	$ 35,030	$ 61,075	$ 70,528
Basic earnings per share (in dollars per share)	$ 0.51	$ 0.37	$ (0.15)	$ 0.98	$ 0.55	$ 0.66	$ 0.29	$ 1.23	$ 1.72	$ 2.75	$ 2.95
Diluted earnings per share (in dollars per share)	$ 0.51	$ 0.37	$ (0.15)	$ 0.97	$ 0.54	$ 0.66	$ 0.29	$ 1.22	$ 1.71	$ 2.72	$ 2.92