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Segment Reporting (Tables) | 6 Months Ended
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Jul. 31, 2025
Segment Reporting [Abstract] |
Company's Revenue by Geographic Region Based on Bill-to Location | The following table sets forth the Company’s revenue by geographic region based on bill-to location for the periods indicated.
|  | Three Months Ended July 31, |  |  | Six Months Ended July 31, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
|  | (in thousands) |
Taiwan |  | $ | 68,137 |  |  | $ | 39,830 |  |  | $ | 122,036 |  |  | $ | 73,515 |
Asia Pacific other than Taiwan |  |  | 17,789 |  |  |  | 13,620 |  |  |  | 34,348 |  |  |  | 26,370 |
Europe |  |  | 4,690 |  |  |  | 5,744 |  |  |  | 13,429 |  |  |  | 9,943 |
North America other than United States |  |  | 4,197 |  |  |  | 3,507 |  |  |  | 9,342 |  |  |  | 6,277 |
United States |  |  | 698 |  |  |  | 1,023 |  |  |  | 2,228 |  |  |  | 2,092 |
Total revenue |  | $ | 95,511 |  |  | $ | 63,724 |  |  | $ | 181,383 |  |  | $ | 118,197 |
Summary of Significant Segment Expense Included in Consolidated Net Loss | The following table presents the significant segment expenses included in the condensed consolidated net loss for the periods indicated:
|  | Three Months Ended July 31, |  |  | Six Months Ended July 31, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
|  | (in thousands) |
Total revenue |  | $ | 95,511 |  |  | $ | 63,724 |  |  | $ | 181,383 |  |  | $ | 118,197 |
Less cost and expense: |  |  |  |  |  |  |  |  |  |  |  |
Product cost |  |  | 37,743 |  |  |  | 23,393 |  |  |  | 70,371 |  |  |  | 43,342 |
Employee-related |  |  | 32,066 |  |  |  | 29,079 |  |  |  | 63,525 |  |  |  | 57,462 |
Stock-based compensation |  |  | 25,188 |  |  |  | 27,612 |  |  |  | 51,318 |  |  |  | 53,648 |
Semiconductor development cost |  |  | 7,829 |  |  |  | 6,230 |  |  |  | 14,601 |  |  |  | 12,604 |
Tools & equipment |  |  | 7,361 |  |  |  | 6,596 |  |  |  | 15,427 |  |  |  | 11,969 |
Professional services |  |  | 3,804 |  |  |  | 3,768 |  |  |  | 7,491 |  |  |  | 8,142 |
Facilities-related |  |  | 2,886 |  |  |  | 2,697 |  |  |  | 5,548 |  |  |  | 5,464 |
Other segment items (a) |  |  | 823 |  |  |  | 1,334 |  |  |  | 1,779 |  |  |  | 2,803 |
Interest income |  |  | (2,194 | ) |  |  | (2,096 | ) |  |  | (4,354 | ) |  |  | (4,416 | )
Net loss |  | $ | (19,995 | ) |  | $ | (34,889 | ) |  | $ | (44,323 | ) |  | $ | (72,821 | )
(a) The other segment items include amortization of intangible assets acquired from business combinations, non-operating (income) expenses, income tax provision (benefit) and other immaterial items

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- Definition Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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