CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Revision of Prior Period, Accounting Standards Update, Adjustment	Common Stock	Accumulated Deficit	Accumulated Deficit Revision of Prior Period, Accounting Standards Update, Adjustment
Balance, beginning of period at Feb. 03, 2018	$ 140,761		$ 167,501	$ (26,740)
Balance, beginning of period (in shares) at Feb. 03, 2018			15,977,239
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock purchases	320		$ 320
Employee stock purchases (in shares)			37,128
Exercise of stock options	23		$ 23
Exercise of stock options (in shares)			177,526
Restricted stock issued			110,400
Net share settlement of stock options and restricted stock	(382)		$ (382)
Net share settlement of stock options and restricted stock (in shares)			(146,721)
Stock-based compensation expense	2,015		$ 2,015
Repurchase and retirement of common stock	$ (15,717)			(15,717)
Repurchase and retirement of common stock (in shares)	(1,650,748)		(1,650,748)
Net income (loss)	$ 3,780			3,780
Balance, end of period at Feb. 02, 2019	130,800		$ 169,477	(38,677)
Balance, end of period (Cumulative Effect of Change in Accounting Principle) at Feb. 02, 2019		$ (331)			$ (331)
Balance, end of period (in shares) at Feb. 02, 2019			14,504,824
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock purchases	241		$ 241
Employee stock purchases (in shares)			104,160
Restricted stock issued			197,090
Net share settlement of stock options and restricted stock	(87)		$ (87)
Net share settlement of stock options and restricted stock (in shares)			(42,973)
Stock-based compensation expense	3,254		$ 3,254
Repurchase and retirement of common stock	$ (3,657)			(3,657)
Repurchase and retirement of common stock (in shares)	(807,275)		(807,275)
Net income (loss)	$ (53,265)			(53,265)
Balance, end of period at Feb. 01, 2020	$ 76,955		$ 172,885	(95,930)
Balance, end of period (in shares) at Feb. 01, 2020	13,955,826		13,955,826
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock purchases	$ 35		$ 35
Employee stock purchases (in shares)			34,999
Exercise of stock options	360		$ 360
Exercise of stock options (in shares)			52,561
Restricted stock issued			281,604
Net share settlement of stock options and restricted stock	(60)		$ (60)
Net share settlement of stock options and restricted stock (in shares)			(22,814)
Stock-based compensation expense	1,171		$ 1,171
Repurchase and retirement of common stock	$ (178)			(178)
Repurchase and retirement of common stock (in shares)	(9,926)		(9,926)
Net income (loss)	$ 16,639			16,639
Balance, end of period at Jan. 30, 2021	$ 94,922		$ 174,391	$ (79,469)
Balance, end of period (in shares) at Jan. 30, 2021	14,292,250		14,292,250