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Segment Reporting (Tables)

9 Months Ended

Oct. 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 October 31,								Nine Months Ended October 31,
		2025				2024				2025				2024
		(in thousands)
Taiwan		$	75,961			$	54,612			$	197,997			$	128,127
Asia Pacific other than Taiwan			20,177				15,733				54,525				42,103
Europe			3,181				5,991				16,610				15,934
North America other than United States			7,353				5,756				16,695				12,033
United States			1,780				561				4,008				2,653
Total revenue		$	108,452			$	82,653			$	289,835			$	200,850

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 October 31,								Nine Months Ended October 31,
		2025				2024				2025				2024
		(in thousands)
Total revenue		$	108,452			$	82,653			$	289,835			$	200,850
Less cost and expense:
Product cost			42,452				30,949				112,823				74,291
Employee-related			32,828				28,820				96,353				86,282
Stock-based compensation			25,741				26,847				77,059				80,495
Semiconductor development cost			9,227				8,684				23,828				21,288
Tools & equipment			6,422				6,217				21,849				18,186
Professional services			3,924				3,582				11,415				11,724
Facilities-related			3,342				2,708				8,890				8,172
Other segment items (a)			1,813				1,065				3,592				3,868
Interest income			(2,190	)			(2,148	)			(6,544	)			(6,564	)
Net loss		$	(15,107	)		$	(24,071	)		$	(59,430	)		$	(96,892	)

(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

X

- Definition

Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-31

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-30

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X

- 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

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- References

No definition available.

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