Quarterly report pursuant to Section 13 or 15(d)

Segment Information, Significant Customers and Geographic Information - Long-Lived Assets by Geographic Locations (Detail)

v3.19.1
Segment Information, Significant Customers and Geographic Information - Long-Lived Assets by Geographic Locations (Detail) - USD ($)
$ in Thousands
Apr. 30, 2019
Jan. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total long-lived assets by geographic location $ 12,844 $ 7,642
North America [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total long-lived assets by geographic location $ 8,926 $ 7,148
Long-lived assets, Percentage 70.00% 93.00%
Europe and Middle East [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total long-lived assets by geographic location $ 3,872 $ 446
Long-lived assets, Percentage 30.00% 6.00%
Asia Pacific [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total long-lived assets by geographic location $ 46 $ 48
Long-lived assets, Percentage 0.00% 1.00%