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Property and Equipment - Location of Property and Equipment (Detail) - USD ($) $ in Thousands | Jan. 31, 2021 | Jan. 31, 2020
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Geographic Information For Property Plant And Equipment [Line Items] |  |
Net book value of property and equipment | $ 4,751 | $ 5,419
United States |  |
Geographic Information For Property Plant And Equipment [Line Items] |  |
Net book value of property and equipment | 3,133 | 3,379
Europe |  |
Geographic Information For Property Plant And Equipment [Line Items] |  |
Net book value of property and equipment | 87 | 78
Singapore |  |
Geographic Information For Property Plant And Equipment [Line Items] |  |
Net book value of property and equipment | 480 | 773
Malaysia |  |
Geographic Information For Property Plant And Equipment [Line Items] |  |
Net book value of property and equipment | $ 1,051 | $ 1,189

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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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