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Note 12 - Trade and Other Receivables - Summary of Aging of Trade Receivables (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Trade and other receivables [line items] |  |
Weighted-average expected credit loss rate | 5.30% | 10.00%
Gross carrying amount of trade receivables | $ 98,003 | $ 77,059
Loss allowance as of December 31 | $ 5,180 | $ 7,677
Current [member] |  |
Trade and other receivables [line items] |  |
Weighted-average expected credit loss rate | 0.70% | 0.70%
Gross carrying amount of trade receivables | $ 85,973 | $ 62,815
Loss allowance as of December 31 | $ 589 | $ 458
Not later than one month [member] |  |
Trade and other receivables [line items] |  |
Weighted-average expected credit loss rate | 1.70% | 1.20%
Gross carrying amount of trade receivables | $ 4,793 | $ 4,116
Loss allowance as of December 31 | $ 83 | $ 47
Later than one month and not later than two months [member] |  |
Trade and other receivables [line items] |  |
Weighted-average expected credit loss rate | 2.60% | 2.10%
Gross carrying amount of trade receivables | $ 1,334 | $ 1,247
Loss allowance as of December 31 | $ 35 | $ 26
Later than two months and not later than three months [member] |  |
Trade and other receivables [line items] |  |
Weighted-average expected credit loss rate | 3.80% | 3.10%
Gross carrying amount of trade receivables | $ 387 | $ 634
Loss allowance as of December 31 | $ 15 | $ 20
Later than three months [member] |  |
Trade and other receivables [line items] |  |
Weighted-average expected credit loss rate | 80.80% | 86.40%
Gross carrying amount of trade receivables | $ 5,516 | $ 8,248
Loss allowance as of December 31 | $ 4,459 | $ 7,126

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- Definition The rate of expected credit losses, calculated as percentage of the gross carrying amount. Expected credit losses are the weighted average of credit losses with the respective risks of a default occurring as the weights. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35N -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35N&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG20D -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG20D&doctype=Implementation%20Guidance -URIDate 2024-03-27 + Details
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Balance Type: | na
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- Definition Allowance for expected credit losses. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- Definition Trade and other receivables. + References No definition available. + Details
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Namespace Prefix: | opra_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Amount of trade receivables before allowance. + References No definition available. + Details
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Balance Type: | debit
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- Details
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- Details
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- Details
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- Details
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- Details
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