XML 42 R30.htm IDEA: XBRL DOCUMENT v3.26.1

Equity and Stock-Based Compensation (Tables)

9 Months Ended

Jun. 30, 2026

Share-Based Payment Arrangement [Abstract]

Summary of Stock Option Activity

The following table summarizes our stock option activity during the nine months ended June 30, 2026:

		Options				Weighted Average Exercise Price
Outstanding at beginning of period			919,741			$	6.67
Granted			160,000				16.05
Exercised			(163,342	)			7.25
Forfeited			(29,150	)			5.33
Outstanding at end of period			887,249			$	8.30
Exercisable at end of period			605,251			$	6.90
Weighted average fair value of options granted during the period		$	9.39

Schedule of Fair Value of Stock Option Using Black-Scholes Option Pricing Model

The fair value of options was estimated at the applicable grant date using the Black-Scholes option pricing model with the following assumptions:

		Nine Months Ended June 30,
		2026				2025
Risk free interest rate			4	%			4	%
Expected term		5 years				5 years
Dividend rate			—	%			—	%
Volatility			65	%			60	%

Summary of RSU activity

The following table summarizes our RSU activity during the nine months ended June 30, 2026:

		Number				Weighted Average Grant Date Fair Value
Nonvested at beginning of year			168,024			$	4.98
Granted			78,955				13.11
Released			(77,564	)			4.97
Forfeited			(20,399	)			5.77
Nonvested at end of period			149,016			$	9.19

Summary of Proceeds and Costs Related to Underwritten Public Offering

The proceeds from the offering are intended to be used to accelerate growth across the Company’s semiconductor packaging and advanced wafer substrate fabrication platforms, for accretive merger and acquisition opportunities, and for working capital and general corporate purposes.

		Amount (in thousands)
Issuance of common stock		$	60,000
Underwriting discounts and commissions			(3,000	)
Other offering costs			(469	)
Net increase in APIC		$	56,531

X

- Definition

Summary of proceeds and costs related to underwritten public offering.

+ References

No definition available.

+ Details

Name:	asys_SummaryOfProceedsAndCostsRelatedToUnderwrittenPublicOfferingTableTextBlock
Namespace Prefix:	asys_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (f)(2)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration