Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheet Detail - Property and Equipment, Net (Detail)

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Condensed Consolidated Balance Sheet Detail - Property and Equipment, Net (Detail) - USD ($)
$ in Thousands
Jul. 31, 2022
Jan. 31, 2022
Property Plant And Equipment [Line Items]    
Property and Equipment, Gross $ 3,978 $ 4,095
Less: Accumulated depreciation and amortization (3,264) (3,193)
Total property and equipment, net 714 902
Computer Equipment, Software and Demonstration Equipment [Member]    
Property Plant And Equipment [Line Items]    
Property and Equipment, Gross 3,613 3,689
Office Furniture and Equipment [Member]    
Property Plant And Equipment [Line Items]    
Property and Equipment, Gross 236 263
Leasehold Improvements [Member]    
Property Plant And Equipment [Line Items]    
Property and Equipment, Gross $ 129 $ 143