EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May 02, 2015	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Basic and diluted earnings per share [Abstract]
Net income, in thousands	$ 12,055	$ 14,604	$ 6,510	$ 27,906	$ 17,411	$ 18,677	$ 7,031	$ 27,408	$ 61,075	$ 70,528	$ 73,584
Weighted average number of common shares outstanding (in shares)									22,240,000	23,947,000	25,369,000
Weighted average number of common shares outstanding and dilutive shares (in shares)									22,427,000	24,129,000	25,620,000
Basic earnings per share (in dollars per share)	$ 0.55	$ 0.66	$ 0.29	$ 1.23	$ 0.76	$ 0.79	$ 0.29	$ 1.10	$ 2.75	$ 2.95	$ 2.90
Diluted earnings per share (in dollars per share)	$ 0.54	$ 0.66	$ 0.29	$ 1.22	$ 0.76	$ 0.79	$ 0.28	$ 1.09	$ 2.72	$ 2.92	$ 2.87
Stock Options [Member]
Basic and diluted earnings per share [Abstract]
Dilutive equity awards (in shares)									40,000	35,000	66,000
Antidilutive securities excluded from the computation of earnings per share (in shares)									104,091	120,206	677
Nonvested Stock Awards [Member]
Basic and diluted earnings per share [Abstract]
Dilutive equity awards (in shares)									147,000	147,000	185,000
Antidilutive securities excluded from the computation of earnings per share (in shares)									37,300
Incremental dilutive impact if performance criteria had been achieved (in shares)									24,503