CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Income Statement [Abstract]
Net sales		$ 634,117	$ 594,328	$ 561,807
Cost of sales	[1]	374,935	351,276	324,136
Cost of sales related to merchandise purchased from related party vendor		51,646	40,560	35,170
Cost of sales		426,581	391,836	359,306
Gross profit		207,536	202,492	202,501
Operating expenses:
Compensation and benefits		116,895	110,277	102,471
Other operating expenses		74,299	68,873	67,950
Depreciation (exclusive of depreciation included in cost of sales)	[1]	6,990	6,343	5,889
Total operating expenses		198,184	185,493	176,310
Operating income		9,352	16,999	26,191
Interest expense		275	276	346
Other income, net		(739)	(252)	(252)
Income before income taxes		9,816	16,975	26,097
Income tax expense		4,520	5,929	9,524
Net income		$ 5,296	$ 11,046	$ 16,573
Earnings per share:
Basic (in dollars per share)		$ 0.33	$ 0.70	$ 0.97
Diluted (in dollars per share)		$ 0.33	$ 0.68	$ 0.94
Weighted average shares outstanding:
Basic (in shares)		15,973	15,859	17,131
Effect of dilutive common stock equivalents (in shares)		193	286	438
Diluted (in shares)		16,166	16,145	17,569
Dividends declared per common share outstanding (in dollars per shares)		$ 0	$ 0	$ 1.50

[1] Refer to Note 1 for information about a reclassification of supply-chain and store-related depreciation expense to cost of sales.