v3.25.1
Document and Entity Information
May 06, 2025
Document And Entity Information [Line Items]  
Amendment Flag false
Entity Central Index Key 0001675033
Document Type 8-K
Document Period End Date May 06, 2025
Entity Registrant Name GREAT ELM CAPITAL CORP.
Entity Incorporation State Country Code MD
Entity File Number 814-01211
Entity Tax Identification Number 81-2621577
Entity Address, Address Line One 3801 PGA Boulevard
Entity Address, Address Line Two Suite 603
Entity Address, City or Town Palm Beach Gardens
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33410
City Area Code (617)
Local Phone Number 375-3006
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common stock, par value $0.01 per share
Trading Symbol GECC
Security Exchange Name NASDAQ
M 5.875 Notes Due 2026 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 5.875% Notes due 2026
Trading Symbol GECCO
Security Exchange Name NASDAQ
M 8.75 Notes Due 2028 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 8.75% Notes due 2028
Trading Symbol GECCZ
Security Exchange Name NASDAQ
M 8.50 Notes Due 2029 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 8.50% Notes due 2029
Trading Symbol GECCI
Security Exchange Name NASDAQ
M 8.125 Notes Due 2029 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 8.125% Notes due 2029
Trading Symbol GECCH
Security Exchange Name NASDAQ