Revenue from Contracts with Customers - Revenue Disaggregated by Geography (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 21,215	$ 29,919
United States
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3,687	3,920
Europe, Russia & CIS
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	8,512	15,262
Middle East & Africa
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	1,226	1,576
Asia-Pacific
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	6,523	5,377
Canada & Latin America
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 1,267	$ 3,784