v3.25.2
Cover - shares
 6 Months Ended
Jun. 30, 2025
Aug. 14, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Amendment Flag false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Entity Information [Line Items]    
Entity Registrant Name iSpecimen Inc.  
Entity Central Index Key 0001558569  
Entity File Number 001-40501  
Entity Tax Identification Number 27-0480143  
Entity Incorporation, State or Country Code DE  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Contact Personnel [Line Items]    
Entity Address, Address Line One 8 Cabot Road  
Entity Address, Address Line Two Suite 1800  
Entity Address, City or Town Woburn  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 01801  
Entity Phone Fax Numbers [Line Items]    
City Area Code (781)  
Local Phone Number 301-6700  
Entity Listings [Line Items]    
Title of 12(b) Security Common Stock, par value $0.0001 per share  
Trading Symbol ISPC  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   5,539,345