v3.25.2
Document and Entity Information
Jun. 10, 2025
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Jun. 10, 2025
Entity Registrant Name WhiteHorse Finance, Inc.
Entity Incorporation, State or Country Code DE
Securities Act File Number 814-00967
Entity Tax Identification Number 45-4247759
Entity Address, Address Line One 1450 Brickell Avenue
Entity Address, Address Line Two 31st Floor
Entity Address, City or Town Miami
Entity Address, State or Province FL
Entity Address, Postal Zip Code 33131
City Area Code 305
Local Phone Number 381-6999
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0001552198
Amendment Flag false
Common Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common Stock, par value $0.001 per share
Trading Symbol WHF
Security Exchange Name NASDAQ
7.875% Notes Due 2028 [Member]  
Document Information [Line Items]  
Title of 12(b) Security 7.875% Notes due 2028
Trading Symbol WHFCL
Security Exchange Name NASDAQ