CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (14,327)	$ (21,597)	$ (32,760)
Foreign currency translation adjustments	(4)	2	1
Comprehensive loss	$ (14,331)	$ (21,595)	$ (32,759)