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N-2 - $ / shares | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2026 | Dec. 31, 2025 | Mar. 31, 2025 | Dec. 31, 2024
Cover [Abstract] |  |  |  |
Entity Central Index Key | 0001259429 |  |  |
Amendment Flag | false |  |  |
Securities Act File Number | 814-00638 |  |  |
Document Type | 10-Q |  |  |
Entity Registrant Name | OXFORD SQUARE CAPITAL CORP. |  |  |
Entity Address, Address Line One | 8 SOUND SHORE DRIVE |  |  |
Entity Address, Address Line Two | SUITE 255 |  |  |
Entity Address, City or Town | GREENWICH |  |  |
Entity Address, State or Province | CT |  |  |
Entity Address, Postal Zip Code | 06830 |  |  |
City Area Code | (203) |  |  |
Local Phone Number | 983-5275 |  |  |
Entity Emerging Growth Company | false |  |  |
General Description of Registrant [Abstract] |  |  |  |
Investment Objectives and Practices [Text Block] | Our investment objective is to maximize our portfolio’s total return. Our primary focus is to seek an attractive risk-adjusted total return by investing primarily in corporate debt securities and, to a lesser extent, in collateralized loan obligations (“CLO”), which are structured finance investments that own corporate debt securities. CLO investments may also include warehouse facilities, which are early-stage CLO vehicles intended to aggregate loans that may be used to form the basis of a traditional CLO vehicle. We operate as a closed-end management investment company and have elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “1940 Act”). We have elected to be treated for tax purposes as a regulated investment company (“RIC”), under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). Our investment activities are managed by Oxford Square Management, LLC (“Oxford Square Management”), a registered investment adviser under the Investment Advisers Act of 1940, as amended. Oxford Square Management is owned by Oxford Funds, LLC (“Oxford Funds”), its managing member, and a related party, Charles M. Royce, a member of our Board of Directors (“Board”) who holds a minority, non-controlling interest in Oxford Square Management. Jonathan H. Cohen, our Chief Executive Officer, and Saul B. Rosenthal, our President, are the controlling members of Oxford Funds. Under an investment advisory agreement (the “Investment Advisory Agreement”), we have agreed to pay Oxford Square Management an annual base management fee calculated on gross assets, and an incentive fee based upon our performance. Under an amended and restated administration agreement (the “Administration Agreement”), we have agreed to pay or reimburse Oxford Funds, as administrator, for certain expenses incurred in operating the Company. Our executive officers and directors, and the executive officers of Oxford Square Management and Oxford Funds, serve or may serve as officers and directors of entities that operate in a line of business similar to our own. Accordingly, they may have obligations to investors in those entities, the fulfillment of which might not be in the best interests of us or our stockholders. |  |  |
Risk Factors [Table Text Block] | ITEM 1A. RISK FACTORS. In addition to the other information set forth in this report, you should carefully consider the risk factors discussed in “Item 1A — Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025. The risks described in our Annual Report on Form 10-K are not the only risks facing us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially and adversely affect our business, financial condition and/or operating results. There have been no material changes known to us during the three months ended March 31, 2026, to the risk factors discussed in “Item 1A. — Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2025. |  |  |
Share Price [Table Text Block] | Issuer Purchases of Equity Securities During the three months ended March 31, 2026, no common stock was repurchased by the Company. |  |  |
NAV Per Share | $ 1.32 | $ 1.69 | $ 2.09 | $ 2.3

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