Schedule of Subject to Possible Redemption (Details) - USD ($)	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Gross proceeds	$ 69,000,000
Proceeds allocated to Public Rights	(100)
Plus: Accretion of carrying value to redemption value	7,737,382
Ordinary shares subject to possible redemption	70,974,242
Common Stock Subject to Mandatory Redemption [Member]
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Gross proceeds	69,000,000
Proceeds allocated to Public Rights	(621,000)
Proceeds allocated to Public Warrants	(1,104,000)
Allocation of offering costs related to redeemable shares	(4,770,382)
Plus: Accretion of carrying value to redemption value	7,737,382
Subsequent measurement of ordinary shares subject to possible redemption (income earned on trust account)	732,242
Ordinary shares subject to possible redemption	$ 70,974,242

Allocation of offering costs related to redeemable shares.

No definition available.

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- Definition

Subsequent measurement of ordinary shares subject to possible redemption.

+ References

No definition available.

+ Details

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Namespace Prefix:	ATMC_
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- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

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- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

+ Details

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- Definition

The cash inflow associated with the amount received from the stock plan during the period.

+ References

+ Details

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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

Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders.

+ References

No definition available.

+ Details

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- Definition

Carrying amount of the par value of temporary equity outstanding. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480244/480-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (27)
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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- Details

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