v3.26.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Mar. 26, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Document Fiscal Year Focus 2025    
Document Transition Report false    
Securities Act File Number 001-38770    
Entity Registrant Name EPSILON ENERGY LTD.    
Entity Incorporation, State or Country Code A0    
Entity Tax Identification Number 98-1476367    
Entity Address, Address Line One 500 Dallas Street    
Entity Address, Address Line Two Suite 1250    
Entity Address, City or Town Houston    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 77002    
City Area Code 281    
Local Phone Number 670-0002    
Title of 12(b) Security Common Shares, no par value    
Trading Symbol EPSN    
Security Exchange Name NASDAQ    
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     $ 133.7
Entity Common Stock, Shares Outstanding   30,239,980  
Entity Central Index Key 0001726126    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Amendment Flag false    
Auditor Name BDO USA, P.C.    
Auditor Firm ID 243    
Auditor Location Houston, Texas