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Summary of Significant Accounting Policies - Schedule of change in the Dissenting Shares liability measured at fair value, on a recurring basis (Details) $ in Thousands | 9 Months Ended
--- | ---
Dec. 31, 2024 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
Change in fair value | $ 0
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
Balance of Dissenting Shareholders' Liability as of April 1, 2024 | 0
Initial value upon re-domestication | 4,526
Change in fair value | 1,103
Cash settlement of dissenting shareholders' liability | (5,629)
Balance of Dissenting Shareholders' Liability as of September 30, 2024 | $ 0

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- Definition Cash settlement of dissenting shareholders' liability + References No definition available. + Details
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Namespace Prefix: | omcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Change in Fair Value + References No definition available. + Details
Name: | omcc_ChangeInFairValue
Namespace Prefix: | omcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Dissenting shareholders' liability + References No definition available. + Details
Name: | omcc_DissentingShareholdersLiability
Namespace Prefix: | omcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Initial Value Upon Re-Domestication + References No definition available. + Details
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Namespace Prefix: | omcc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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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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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |