XML 12 R1.htm IDEA: XBRL DOCUMENT v3.26.1
Document And Entity Information - shares
 3 Months Ended
Mar. 31, 2026
Apr. 30, 2026
Document Information [Line Items]    
Entity Central Index Key 0001259429  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Fiscal Year Focus 2026  
Document Transition Report false  
Securities Act File Number 814-00638  
Entity Registrant Name OXFORD SQUARE CAPITAL CORP.  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 20-0188736  
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 Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   93,527,087
Amendment Flag false  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --12-31  
Common stock, par value $0.01 per share    
Document Information [Line Items]    
Title of 12(b) Security Common stock, par value $0.01 per share  
Trading Symbol OXSQ  
Security Exchange Name NASDAQ  
5.50% Notes due 2028    
Document Information [Line Items]    
Title of 12(b) Security 5.50% Notes due 2028  
Trading Symbol OXSQG  
Security Exchange Name NASDAQ  
7.75% Notes due 2030    
Document Information [Line Items]    
Title of 12(b) Security 7.75% Notes due 2030  
Trading Symbol OXSQH  
Security Exchange Name NASDAQ