Condensed Consolidated Statement of Shareholders' Equity (Unaudited) - 6 months ended Jul. 29, 2017 - USD ($) $ in Thousands	Total	Common Stock	Accumulated Deficit
Balance, beginning of period at Jan. 28, 2017	$ 133,813	$ 165,245	$ (31,432)
Balance, beginning of period (in shares) at Jan. 28, 2017	15,906,635	15,906,635
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock purchase plan	$ 172	$ 172
Issuance of common stock under employee stock purchase plan (in shares)		19,941
Exercise of stock options (in shares)		5,000
Restricted stock issued (in shares)		101,979
Net share settlement of stock options and restricted stock units	(193)	$ (193)
Net share settlement of stock options and restricted stock units (in shares)		(22,386)
Stock-based compensation expense	1,184	$ 1,184
Net loss	(5,207)		(5,207)
Balance, end of period at Jul. 29, 2017	$ 129,769	$ 166,408	$ (36,639)
Balance, end of period (in shares) at Jul. 29, 2017	16,011,169	16,011,169