Accumulated Other Comprehensive Loss - Changes in Balance of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Oct. 27, 2018	Jul. 28, 2018	Apr. 28, 2018	Nov. 02, 2019	Nov. 02, 2019	Oct. 27, 2018
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	$ 72,088	$ 71,614	$ 69,775	$ 65,488	$ 64,630	$ 63,647	$ 69,775	$ 69,775	$ 63,647
Other Comprehensive Income (Loss)	152	(257)	(200)	(86)	(362)	(163)		(305)	(611)
Ending Balance	72,953	72,088	71,614		65,488	64,630	72,953	72,953
Foreign Currency Translation Adjustments [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance							(852)
Other Comprehensive Loss before reclassification							(166)
Amounts reclassified from AOCL to Earnings							0
Other Comprehensive Income (Loss)							(166)
Ending Balance	(1,018)						(1,018)	(1,018)
Net Unrealized Gain/(Loss) on Cash Flow Hedges [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance							34
Other Comprehensive Loss before reclassification							62
Amounts reclassified from AOCL to Earnings							(201)
Other Comprehensive Income (Loss)							(139)
Ending Balance	(105)						(105)	(105)
Accumulated Other Comprehensive Income (Loss) [Member]
Schedule of Capitalization, Equity [Line Items]
Beginning Balance	(1,275)	(1,018)	(818)	(697)	(335)	(172)	(818)	(818)	$ (172)
Other Comprehensive Loss before reclassification							(104)
Amounts reclassified from AOCL to Earnings							(201)
Other Comprehensive Income (Loss)	152	(257)	(200)	$ (86)	(362)	(163)	(305)
Ending Balance	$ (1,123)	$ (1,275)	$ (1,018)		$ (697)	$ (335)	$ (1,123)	$ (1,123)