Deconsolidation, Aggregate Consideration When Shares Changed Hands

No definition available.

Name:	aloy_DeconsolidationAggregateConsiderationWhenSharesExchangedBetweenUnrelatedThirdParties
Namespace Prefix:	aloy_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Deconsolidation, Net Liabilities Derecognized

+ References

No definition available.

+ Details

Name:	aloy_DeconsolidationNetLiabilitiesDerecognized
Namespace Prefix:	aloy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Deconsolidation, Shares Exchanged Between Unrelated Third Parties

+ References

No definition available.

+ Details

Name:	aloy_DeconsolidationSharesExchangedBetweenUnrelatedThirdParties
Namespace Prefix:	aloy_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Deconsolidation, Shares Retained By Company

+ References

No definition available.

+ Details

Name:	aloy_DeconsolidationSharesRetainedByCompany
Namespace Prefix:	aloy_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Deconsolidation, Transfer Of Stock, Shares Received

+ References

No definition available.

+ Details

Name:	aloy_DeconsolidationTransferOfStockSharesReceived
Namespace Prefix:	aloy_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Deconsolidation, Transfer Of Stock, Shares Transferred

+ References

No definition available.

+ Details

Name:	aloy_DeconsolidationTransferOfStockSharesTransferred
Namespace Prefix:	aloy_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Equity Securities without Readily Determinable Fair Value, Amount Derecognized

+ References

No definition available.

+ Details

Name:	aloy_EquitySecuritiesWithoutReadilyDeterminableFairValueAmountDerecognized
Namespace Prefix:	aloy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Net Assets Acquired In Reverse Recapitalization

+ References

No definition available.

+ Details

Name:	aloy_NetAssetsAcquiredInReverseRecapitalization
Namespace Prefix:	aloy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Net Assets Acquired In Reverse Recapitalization, Cash

+ References

No definition available.

+ Details

Name:	aloy_NetAssetsAcquiredInReverseRecapitalizationCash
Namespace Prefix:	aloy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number Of Failed Public-Market Transaction Pathways

+ References

No definition available.

+ Details

Name:	aloy_NumberOfFailedPublicMarketTransactionPathways
Namespace Prefix:	aloy_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Preferred Stock, Voting Rights Per Share

+ References

No definition available.

+ Details

Name:	aloy_PreferredStockVotingRightsPerShare
Namespace Prefix:	aloy_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Recapitalization Exchange Ratio

+ References

No definition available.

+ Details

Name:	aloy_RecapitalizationExchangeRatio
Namespace Prefix:	aloy_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Reverse Recapitalization [Line Items]

+ References

No definition available.

+ Details

Name:	aloy_ReverseRecapitalizationLineItems
Namespace Prefix:	aloy_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Reduction in cash due to no longer including the former subsidiary's cash in the consolidated entity's cash.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

+ Details

Name:	us-gaap_CashDivestedFromDeconsolidation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479536/321-10-50-3

+ Details

Name:	us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of impairment loss on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479536/321-10-50-3

+ Details

Name:	us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	srt_OwnershipAxis=aloy_Blackbox.ioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesAPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=aloy_Blackboc.ioInc.SeriesAPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=aloy_GustKeplerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=aloy_EVTECHoldingsGroupLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Blackbox Reverse Recapitalization (Details) $ / shares in Units, $ in Thousands			6 Months Ended
	May 05, 2026 USD ($) $ / shares shares	Feb. 24, 2026 USD ($) vote pathway	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Feb. 23, 2026 USD ($)	Dec. 31, 2025 USD ($)
Reverse Recapitalization [Line Items]
Recapitalization exchange ratio		0.4129
Net assets acquired in recapitalization, net of deconsolidation		$ 6,200	$ 6,228	$ 0
Net assets acquired in reverse recapitalization, cash		$ 400
Equity securities without readily determinable fair value, amount			0			$ 0
Impairment of investment			6,394	$ 817
Number of failed public-market transaction pathways \| pathway		2
Blackbox.io
Reverse Recapitalization [Line Items]
Cash divested from deconsolidation	$ 70
Deconsolidation, net liabilities derecognized	$ 50
Series A Preferred Stock
Reverse Recapitalization [Line Items]
Preferred stock, voting rights \| vote		100
Series A Preferred Stock \| Related Party
Reverse Recapitalization [Line Items]
Deconsolidation, aggregate consideration when shares changed hands (in dollars per share) \| $ / shares	$ 1.00
Deconsolidation, shares exchanged between unrelated third parties (in shares) \| shares	1,634,999
Blackboc.io, Inc. Series A Preferred Stock
Reverse Recapitalization [Line Items]
Deconsolidation, shares retained by company (in shares) \| shares	3,226,145
Gust Kepler \| Series A Preferred Stock
Reverse Recapitalization [Line Items]
Deconsolidation, transfer of stock, shares received (in shares) \| shares	1,084,999
Gust Kepler \| Series A Preferred Stock \| Related Party
Reverse Recapitalization [Line Items]
Deconsolidation, transfer of stock, shares received (in shares) \| shares	1,084,999
Gust Kepler \| Blackboc.io, Inc. Series A Preferred Stock
Reverse Recapitalization [Line Items]
Deconsolidation, transfer of stock, shares transferred (in shares) \| shares	3,269,998
EVTEC Holdings Group Limited
Reverse Recapitalization [Line Items]
Equity securities without readily determinable fair value, amount		$ 2,000	$ 0		$ 8,400
Impairment of investment		$ 6,400
Equity securities without readily determinable fair value, amount derecognized	$ 2,000