Annual report pursuant to Section 13 and 15(d)

Geographic Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail)

v3.20.1
Geographic Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Segment Reporting Information [Line Items]    
Total revenue $ 67,154 $ 62,402
North America [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 40,072 $ 30,002
North America [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]    
Segment Reporting Information [Line Items]    
For the Fiscal Years Ended January 31, 60.00% 48.00%
Europe and Middle East [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 15,829 $ 21,990
Europe and Middle East [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]    
Segment Reporting Information [Line Items]    
For the Fiscal Years Ended January 31, 24.00% 35.00%
Latin America [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 9,639 $ 9,068
Latin America [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]    
Segment Reporting Information [Line Items]    
For the Fiscal Years Ended January 31, 14.00% 15.00%
Asia Pacific [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 1,614 $ 1,342
Asia Pacific [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]    
Segment Reporting Information [Line Items]    
For the Fiscal Years Ended January 31, 2.00% 2.00%