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v3.26.1

Schedule of warrant liability (Details) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025
Warrant Liability |  |
As at 1 April |  |
Effect on merger acquisition | 603,500 |
Change in fair value | (477,972) |
As at 31 March | $ 125,528 |

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- Definition Change in fair value of warrant liability amount. + References No definition available. + Details
Name: | ALPS_ChangeInFairValueOfWarrantLiabilityAmount
Namespace Prefix: | ALPS_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | ALPS_DisclosureWarrantLiabilityAbstract
Namespace Prefix: | ALPS_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Merger acquisition warrant liability amount. + References No definition available. + Details
Name: | ALPS_MergerAcquisitionWarrantLiabilityAmount
Namespace Prefix: | ALPS_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of warrant liabilities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_WarrantLiability
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant