XML 11 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Cover - shares
3 Months Ended
Mar. 31, 2023
May 09, 2023
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2023  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2023  
Current Fiscal Year End Date --12-31  
Entity File Number 814-00852  
Entity Registrant Name SuRo Capital Corp.  
Entity Central Index Key 0001509470  
Entity Tax Identification Number 27-4443543  
Entity Incorporation, State or Country Code MD  
Entity Address, Address Line One 640 Fifth Avenue  
Entity Address, Address Line Two 12th Floor  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10019  
City Area Code (212)  
Local Phone Number 931-6331  
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   25,338,580
Common Stock, par value $0.01 per share    
Title of 12(b) Security Common Stock, par value $0.01 per share  
Trading Symbol SSSS  
Security Exchange Name NASDAQ  
6.00 Notes Due 2026 [Member]    
Title of 12(b) Security 6.00% Notes due 2026  
Trading Symbol SSSSL  
Security Exchange Name NASDAQ