Unaudited Quarterly Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May. 02, 2015	Jan. 31, 2015	Nov. 01, 2014	Aug. 02, 2014	May. 03, 2014	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Unaudited Quarterly Results
Net revenues	$ 7,844	$ 8,098	$ 8,482	$ 10,230	$ 7,538	$ 8,706	$ 8,764	$ 9,960	$ 34,654	$ 34,968	$ 28,614
Income before income taxes	1,853	2,348	2,973	5,614	2,501	3,607	3,501	4,925	12,791	14,534	9,471
Net income	$ 1,384	$ 1,546	$ 1,928	$ 3,571	$ 1,661	$ 2,316	$ 2,252	$ 3,592	$ 8,433	$ 9,820	$ 6,074
Net income per share - basic	$ 0.16	$ 0.18	$ 0.22	$ 0.42	$ 0.20	$ 0.27	$ 0.27	$ 0.43	$ 0.97	$ 1.17	$ 0.72
Net income per share - diluted	$ 0.16	$ 0.17	$ 0.22	$ 0.41	$ 0.19	$ 0.27	$ 0.27	$ 0.43	$ 0.95	$ 1.15	$ 0.72