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Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2023
Mar. 22, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Document Transition Report false    
Entity File Number 0-15586    
Entity Registrant Name U.S. NeuroSurgical Holdings, Inc.    
Entity Central Index Key 0001089815    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-5370333    
Entity Address, Address Line One 1131 W 6th Street    
Entity Address, City or Town Ontario    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 91672    
City Area Code 949    
Local Phone Number 249-1170    
Title of 12(g) Security Common Stock, par value $.01 per share    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 710,297
Entity Common Stock, Shares Outstanding   13,304,924  
Auditor Firm ID 3233    
Auditor Name Mercurius & Associates LLP    
Auditor Location New Delhi, India