Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2025	Jul. 28, 2025
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2025
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q2
Trading Symbol	ETH
Entity Registrant Name	Grayscale Ethereum Mini Trust ETF
Entity Current Reporting Status	No
Entity Central Index Key	0002020455
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Common Stock, Shares Outstanding		70,740,788
Entity Tax Identification Number	99-6547880
Entity File Number	001-42184
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	c/o Grayscale Investments Sponsors, LLC
Entity Address, Address Line Two	290 Harbor Drive, 4th Floor
Entity Address, City or Town	Stamford
Entity Address, State or Province	CT
Entity Address, Postal Zip Code	06902
City Area Code	212
Local Phone Number	668-1427
Security Exchange Name	NYSEArca
Title of 12(b) Security	Grayscale Ethereum Mini Trust ETF Shares
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes