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Leases (Details) - Schedule of Lease Liabilities - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Schedule of Lease Liabilities [Line Items] |  |  |
Balance at beginning of year | $ 217 | $ 562 |
Short-term lease liabilities | 370 | 204 |
Long-term lease liabilities | 523 | 13 |
Balance at end of year for lease liabilities | 893 | 217 |
Additions | 901 | 40 |
Disposals | (27) | (12) |
Interest expense | 88 | 11 | $ 102
Payments | (286) | (384) |
Balance at end of year | 893 | 217 | 562
Property [Member] |  |  |
Schedule of Lease Liabilities [Line Items] |  |  |
Balance at beginning of year | 153 | 459 |
Short-term lease liabilities | 358 | 153 |
Long-term lease liabilities | 513 |  |
Balance at end of year for lease liabilities | 871 | 153 |
Additions | 880 |  |
Disposals |  |  |
Interest expense | 87 | 9 |
Payments | (249) | (315) |
Balance at end of year | 871 | 153 | 459
Vehicles [Member] |  |  |
Schedule of Lease Liabilities [Line Items] |  |  |
Balance at beginning of year | 64 | 103 |
Short-term lease liabilities | 12 | 51 |
Long-term lease liabilities | 10 | 13 |
Balance at end of year for lease liabilities | 22 | 64 |
Additions | 21 | 40 |
Disposals | (27) | (12) |
Interest expense | 1 | 2 |
Payments | (37) | (69) |
Balance at end of year | $ 22 | $ 64 | $ 103

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- Definition Amount of additions during year. + References No definition available. + Details
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- Definition Amount of disposals during year. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount of payments during year. + References No definition available. + Details
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- Definition The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration. + References No definition available. + Details
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Namespace Prefix: | alar_
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- Definition The amount of current lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_47_b&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of interest expense on lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_b&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_47_b&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of non-current lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_47_b&doctype=Standard -URIDate 2023-03-23 + Details
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