Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2025	Nov. 04, 2025
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		22,067,213
Entity Central Index Key	0001726126
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Amendment Flag	false