v3.25.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2025
May 01, 2025
Document And Entity Information [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2025  
Securities Act File Number 001-38131  
Entity Registrant Name Esquire Financial Holdings, Inc.  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 27-5107901  
Entity Address, Address Line One 100 Jericho Quadrangle, Suite 100,  
Entity Address, City or Town Jericho  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 11753  
City Area Code 516  
Local Phone Number 535-2002  
Title of 12(b) Security Common Stock, $0.01 par value  
Trading Symbol ESQ  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   8,461,494
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2025  
Amendment Flag false  
Entity Central Index Key 0001531031