v3.25.2
Document and Entity Information
Jul. 22, 2025
Document And Entity Information [Line Items]  
Amendment Flag false
Entity Central Index Key 0000707388
Document Type 8-K
Document Period End Date Jul. 22, 2025
Entity Registrant Name Star Equity Holdings, Inc.
Entity Incorporation State Country Code DE
Entity File Number 001-35947
Entity Tax Identification Number 33-0145723
Entity Address, Address Line One 53 Forest Ave
Entity Address, Address Line Two Suite 101
Entity Address, City or Town Old Greenwich
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06870
City Area Code (203)
Local Phone Number 489-9500
Written Communications true
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 $0.0001 per share
Trading Symbol STRR
Security Exchange Name NASDAQ
Series A Preferred Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Series A Cumulative Perpetual Preferred Stock, par value $0.0001 per share
Trading Symbol STRRP
Security Exchange Name NASDAQ