Basis of Presentation - Schedule of Impact of Adjustment for Adoption of New Accounting (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	May 05, 2018	Apr. 29, 2017	Feb. 04, 2018	Feb. 03, 2018
Balance Sheet
Merchandise inventories	$ 46,380		$ 40,879	$ 41,361
Prepaid expenses and other current assets	4,806		3,197	2,715
Accrued liabilities and other current liabilities	23,226		24,218	26,201
Retained earnings	31,658		36,976	$ 34,993
Statement of Operations and Comprehensive Loss
Net sales	85,901	$ 88,556
Net loss	$ (5,319)	$ (3,688)
Net loss per share:
Basic (in dollars per share)	$ (0.14)	$ (0.10)
Diluted (in dollars per share)	$ (0.14)	$ (0.10)
Calculated under Revenue Guidance in Effect before Topic 606
Balance Sheet
Merchandise inventories	$ 47,209
Prepaid expenses and other current assets	3,977
Accrued liabilities and other current liabilities	23,306
Retained earnings	31,578
Statement of Operations and Comprehensive Loss
Net sales	85,821
Net loss	$ (5,399)
Net loss per share:
Basic (in dollars per share)	$ (0.14)
Diluted (in dollars per share)	$ (0.14)
ASU 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606
Balance Sheet
Merchandise inventories	$ (829)		(482)
Prepaid expenses and other current assets	829		482
Accrued liabilities and other current liabilities	(80)		(1,983)
Retained earnings	80		$ 1,983
Statement of Operations and Comprehensive Loss
Net sales	80
Net loss	$ 80
Net loss per share:
Basic (in dollars per share)	$ 0.00
Diluted (in dollars per share)	$ 0.00