v3.25.2
Document and Entity Information
Jun. 13, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 13, 2025
Entity File Number 814-01399
Entity Registrant Name Star Mountain Lower Middle-Market Capital Corp.
Entity Central Index Key 0001786835
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 86-3924884
Entity Address, Address Line One 140 E. 45th Street
Entity Address, Address Line Two 37th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10017
City Area Code 212
Local Phone Number 810-9044
Entity Emerging Growth Company true
Entity Ex Transition Period false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false