Annual report pursuant to Section 13 and 15(d)

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

v3.21.1
Disaggregated Revenue and Geographic Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Segment Reporting Information [Line Items]    
Total revenue $ 21,999 $ 67,154
North America [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 10,198 $ 40,072
North America [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]    
Segment Reporting Information [Line Items]    
% of total revenues 46.00% 60.00%
Europe and Middle East [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 8,495 $ 15,829
Europe and Middle East [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]    
Segment Reporting Information [Line Items]    
% of total revenues 39.00% 24.00%
Latin America [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 2,519 $ 9,639
Latin America [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]    
Segment Reporting Information [Line Items]    
% of total revenues 11.00% 14.00%
Asia Pacific [Member]    
Segment Reporting Information [Line Items]    
Total revenue $ 787 $ 1,614
Asia Pacific [Member] | Customer Concentration Risk [Member] | Total Revenue [Member]    
Segment Reporting Information [Line Items]    
% of total revenues 4.00% 2.00%