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Note 14 - Related Party Transactions (Details Textual) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Bimini Advisors LLC [Member] |  |  |
Automatic Renewal Period Of Management Agreement (Year) | 1 year |  |
Management Fee and Overhead Expense | $ 16.6 | $ 12.8 | $ 13.6
Bimini Capital Management Inc [Member] |  |  |
Entity Shares Owned (in shares) | 569,071 |  |
Entity Ownership Percentage | 0.30% |  |

X
- Definition Automatic renewal period of management agreement. + References No definition available. + Details
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Namespace Prefix: | orc_
Data Type: | xbrli:durationItemType
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X
- Definition Percent of the entity's common stock that is owned by another entity + References No definition available. + Details
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Namespace Prefix: | orc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of the entities shares that are owned by another entity + References No definition available. + Details
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Namespace Prefix: | orc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
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X
- Definition Amount of management fee and overhead expense recognized in period + References No definition available. + Details
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Namespace Prefix: | orc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=orc_BiminiCapitalManagementIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |