Amtech Systems, Inc. Annual report pursuant to Section 13 and 15(d)

Discontinued Operations and Disposals - Additional Information (Details)

v3.22.2.2

Discontinued Operations and Disposals - Additional Information (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 22, 2020	Sep. 30, 2022	Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on sale of subsidiary			$ (13,709)
R2D \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on sale of subsidiary			$ (2,800)
Tempress \| Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Unsecured term loan, principal amount	$ 2,250
Pre-tax loss on sale	(10,900)
Previously recorded accumulated foreign currency translation losses recognized	$ (7,200)
Forgave unsecured term loans		$ 500

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Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Amount before tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.

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