Debt Instrument, Interest Rate, Discount

No definition available.

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- Definition

Interest Rate Swap Rate Term

+ References

No definition available.

+ Details

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- Definition

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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- Details

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Data Type:	na
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- Details

Name:	us-gaap_LongtermDebtTypeAxis=asys_MortgageNoteMember
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- Details

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- Details

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- Details

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- Details

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Long-term Debt (Details) - USD ($) $ in Thousands			12 Months Ended
Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 26, 2021	Jul. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Jan. 30, 2015
Debt Instrument [Line Items]
Long-term debt, balance			$ 8,495
Interest rate swap rate term			10 years
Secured Debt
Debt Instrument [Line Items]
Long-term debt, balance			$ 400
Interest rate			2.23%
Interest rate discount			1.00%
Debt instrument, term			15 years
Agreement
Debt Instrument [Line Items]
Extinguishment of debt		$ 2,400
Swap Rate \| Secured Debt
Debt Instrument [Line Items]
Basis spread on variable rate			2.40%
Mortgage Note \| Federal Home Loan Board Five Year Classic Advance Rate \| Scenario, Forecast
Debt Instrument [Line Items]
Basis spread on variable rate	240.00%
BTU International, Inc (BTU) Merger
Debt Instrument [Line Items]
Long-term debt acquired					$ 7,200
BTU International, Inc (BTU) Merger \| Mortgage Note
Debt Instrument [Line Items]
Long-term debt, balance			$ 6,200
Interest rate				4.11%
SoLayTec, B.V.
Debt Instrument [Line Items]
Long-term debt, balance			$ 1,900
Interest rate			7.00%
Additional borrowings				$ 300