Revenue Recognition - Summary of Revenues Disaggregated by Primary Geographic Markets (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 03, 2019	Jul. 28, 2018	Aug. 03, 2019	Jul. 28, 2018
Disaggregation of Revenue [Line Items]
Total Revenue	$ 33,468	$ 33,807	$ 69,649	$ 65,294
United States [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	20,648	19,977	42,640	39,210
Europe [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	7,473	7,885	15,349	15,719
Canada [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	1,389	1,648	2,905	3,094
Asia [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	2,218	2,537	5,667	3,976
Central and South America [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	1,325	1,102	2,213	2,156
Other [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	$ 415	$ 658	$ 875	$ 1,139