Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Disaggregated Revenue and Geographic Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Jul. 31, 2021
Jul. 31, 2020
Segment Reporting Information [Line Items]        
Total revenue $ 6,540 $ 4,995 $ 11,592 $ 11,910
North America [Member]        
Segment Reporting Information [Line Items]        
Total revenue $ 4,329 $ 2,318 $ 7,030 $ 5,896
North America [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]        
Segment Reporting Information [Line Items]        
% of total revenues 66.00% 46.00% 61.00% 50.00%
Europe and Middle East [Member]        
Segment Reporting Information [Line Items]        
Total revenue $ 1,579 $ 2,150 $ 3,540 $ 4,132
Europe and Middle East [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]        
Segment Reporting Information [Line Items]        
% of total revenues 24.00% 43.00% 31.00% 35.00%
Latin America [Member]        
Segment Reporting Information [Line Items]        
Total revenue $ 478 $ 343 $ 691 $ 1,476
Latin America [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]        
Segment Reporting Information [Line Items]        
% of total revenues 7.00% 7.00% 6.00% 12.00%
Asia Pacific [Member]        
Segment Reporting Information [Line Items]        
Total revenue $ 154 $ 184 $ 331 $ 406
Asia Pacific [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]        
Segment Reporting Information [Line Items]        
% of total revenues 2.00% 4.00% 3.00% 3.00%