COMBINED STATEMENT OF ASSETS AND LIABILITIES [Abstract] Investment in ether, at fair value Beginning balance of fair value Ending balance of fair value Total investments, Fair Value Total Assets Total liabilities Net Assets Net assets, beginning of period Net assets, end of period Legal Entity [Axis] COMBINED SCHEDULE OF INVESTMENTS [Abstract] Crypto Asset [Axis] Net assets, Fair value as a % of Net Assets COMBINED STATEMENTS OF OPERATIONS [Abstract] Total expenses Net investment loss Net investment loss Net realized and change in unrealized gain (loss) on investment in ether Net increase (decrease) in net assets resulting from operations Net increase (decrease) in net assets resulting from operations COMBINED STATEMENT OF CASH FLOWS [Abstract] Net cash provided by (used in) operating activities Net cash provided by (used in) financing activities Net increase in cash Cash, beginning of period Cash, end of period COMBINED STATEMENT OF CHANGES IN NET ASSETS [Abstract] Net increase (decrease) in net assets from capital share transactions Class of Stock [Axis] ORGANIZATION [Abstract] SIGNIFICANT ACCOUNTING POLICIES [Abstract] Beginning balance Ending balance Shares outstanding (in Shares) Beginning balance Ending balance INVESTMENT IN ETHER [Abstract] Beginning balance (in Ethereum) Ending balance (in Ethereum) Quantity of ether (in Ethereum) Quantity of ether Quantity of ether purchased RELATED PARTIES [Abstract] CONCENTRATION OF RISK [Abstract] COMBINED FINANCIAL HIGHLIGHTS [Abstract] Net asset value per Share, beginning of year (in Dollars per share) Net asset value per Share, end of year (in Dollars per share) Net asset value per Share (in Dollars per share) COMMITMENTS AND CONTINGENCIES [Abstract] INDEMNIFICATION [Abstract] OPERATING SEGMENTS [Abstract] SUBSEQUENT EVENTS [Abstract] Document Type Document Annual Report Current Fiscal Year End Date Document Period End Date Document Fiscal Year Focus Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Entity Shell Company Entity Public Float Entity Common Stock, Shares Outstanding Auditor Firm ID Auditor Name Auditor Location Entity Central Index Key Amendment Flag Document Fiscal Period Focus Assets Liabilities Sponsor's fee payable Notes Payable, Related Party, Type [Extensible Enumeration] Commitments and contingencies (Note 7) Shares issued (in Shares) Investment in ether, at cost Total investments, Cost Shares, no par value (in Dollars per share) Shares authorized, unlimited (in Shares) Assets Liabilities Total investments, Fair value as a % of Net Assets Less liabilities, Fair Value Less liabilities, Fair value as a % of Net Assets Expenses Sponsor's fee Net realized and change in unrealized gain (loss) on investment in ether Net realized gain (loss) from ether sold for the redemption of shares and sold to pay expenses Net realized gain (loss) on investment in ether Net realized (gain) loss on investment in ether Net change in unrealized appreciation (depreciation) on investment in ether Net change in unrealized (appreciation) depreciation on investment in ether Net change in unrealized appreciation (depreciation) on investments in ether Net increase (decrease) in net assets per Share (in Dollars per share) Net realized and change in unrealized gain (loss) on investment in ether Cash Flows from Operating Activities: Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities: Sales of ether Change in operating assets and liabilities: Sponsor’s fee payable Cash Flows from Financing Activities: Proceeds from issuance of Shares Proceeds from issuance of shares (in Dollars) Proceeds from issuance of shares Cash Cash Flows from Operating Activities: Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities: Change in operating assets and liabilities: Cash Flows from Financing Activities: Cash Increase (decrease) in net assets from capital share transactions: Contributions for Shares issued Creation of Shares Creation of shares Stock issued during the period shares new issues (in Shares) Creation of Shares Creation of shares Shares issued, price per share (in Dollars per share) Shares issued, price per share Redemption of Shares Payment to redeem shares (in Dollars) Redemption of shares Redemption of Shares Redemption of shares Payment to redeem shares Number of seed creation units issued (in CreationUnits) Number of seed creation units issued Number of Ether per creation unit Number of Ether per share Quantity of ether purchased (in Ethereum) Quantity of ether purchased Ether purchased for the creation of Shares (in Ethereum) Quantity of ether purchased (in Ethereum) (in Ethereum) Cost of Ether per unit (in Dollars per Item) Cost of Ether per unit Less waiver Purchases of ether Payments on Shares redeemed Distributions for Shares redeemed Franklin Ethereum ETF [Member] Ethereum [Member] Initial Seed Shares [Member] Seed Creation Units [Member] ORGANIZATION SIGNIFICANT ACCOUNTING POLICIES Summary of Changes in Shares INVESTMENT IN ETHER Schedule of Changes in Quantity of Ether Held Ether purchased for the creation of Shares Principal on ether sales to pay expenses (in Ethereum) RELATED PARTIES CONCENTRATION OF RISK COMBINED FINANCIAL HIGHLIGHTS Schedule of Financial Highlights Net investment loss (in Dollars per share) Net realized and unrealized gain (loss) on investment in ether (in Dollars per share) Net change in net assets from operations (in Dollars per share) Total return, at net asset value Ratio to average net assets Net investment loss Gross expenses Net expenses COMMITMENTS AND CONTINGENCIES INDEMNIFICATION OPERATING SEGMENTS SUBSEQUENT EVENTS Ratio to average net assets Redemption of Shares Redemption of shares Ether sold for the redemption of Shares (in Ethereum) Ether sold for the redemption of Shares Principal on ether sales to pay expenses Statistical Measurement [Axis] Related Party Transaction [Axis] Related and Nonrelated Parties [Axis] Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Cybersecurity Risk Management Processes Integrated [Text Block] Cybersecurity Risk Management Processes Integrated [Flag] Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Board of Directors Oversight [Text Block] Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Role of Management [Text Block] Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Cybersecurity Risk Management Positions or Committees Responsible [Flag] Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Cybersecurity Risk Management Third Party Engaged [Flag] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Rule 10b5-1 Arrangement Adopted [Flag] Non-Rule 10b5-1 Arrangement Adopted [Flag] Rule 10b5-1 Arrangement Terminated [Flag] Non-Rule 10b5-1 Arrangement Terminated [Flag] Threshold multiples in which shares are issued Ordinary legal fees and expenses assumed by the Sponsor Sponsor's fee rate Threshold value of the fund's assets on the basis of which Sponsor's fee is determined Accrued sponsor fee Extraordinary or non-routine expenses Number of business days to transfer ownership of Ethereum Initial value of the funds assets on the basis of which fees is determined Number of shares of held by related party (in Shares) Number of operating segments Basis of Presentation Calculation of NAV and NAV per Share Valuation of Ether Fees, Expenses, and Realized Gains (Losses) Ether Receivable and Payable Income Taxes Creation and Redemption of Shares Maximum [Member] Frankin Resources Inc [Member] Sponsor [Member] Entity [Domain] Statement [Table] Statement [Line Items] Crypto Asset [Domain] COMBINED SCHEDULE OF INVESTMENTS [Abstract] Condensed Income Statement [Table] COMBINED STATEMENTS OF OPERATIONS [Abstract] COMBINED STATEMENT OF CHANGES IN NET ASSETS [Abstract] Class of Stock [Domain] Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table] ORGANIZATION [Abstract] Accounting Policies, by Policy Policies [Table] SIGNIFICANT ACCOUNTING POLICIES [Abstract] Investment Holdings, Other than Securities [Table] INVESTMENT IN ETHER [Abstract] RELATED PARTIES [Table] RELATED PARTIES [Abstract] Concentration Risk [Table] CONCENTRATION OF RISK [Abstract] Investment Company, Financial Highlights [Table] COMBINED FINANCIAL HIGHLIGHTS [Abstract] COMMITMENTS AND CONTINGENCIES [Table] COMMITMENTS AND CONTINGENCIES [Abstract] Loss Contingencies [Table] INDEMNIFICATION [Abstract] Schedule of Segment Reporting Information, by Segment [Table] OPERATING SEGMENTS [Abstract] Subsequent Event [Table] SUBSEQUENT EVENTS [Abstract] Accounting Policies, by Policy (Policies) [Table] Accounting Policies, by Policy (Policies) [Line Items] SIGNIFICANT ACCOUNTING POLICIES (Tables) [Table] SIGNIFICANT ACCOUNTING POLICIES (Tables) [Line Items] Cybersecurity Risk Management, Strategy, and Governance [Table] Cybersecurity Risk Management, Strategy, and Governance [Line Items] Trading Arrangements, by Individual [Table] Organization [Abstract] Statistical Measurement [Domain] Related Party Transaction [Domain] Related and Nonrelated Parties [Domain] Related Party Transaction [Table] ScheduleOfSegmentReportingInformationBySegmentTable Carrying value as of the balance sheet date of obligations incurred through that date and payable for certain management support and administrative oversight services. Disclosure of accounting policy for creation and redemption of shares. Number of restricted and unrestricted crypto asset units held. Excludes crypto asset units held for platform user. Number of crypto asset units per creation unit. Number of crypto asset units per share. Number of restricted and unrestricted crypto asset units purchased. Excludes crypto asset units held for platform user. Number of restricted and unrestricted crypto asset units sold. Excludes crypto asset units held for platform user. Amount of decrease in crypto asset from payment for services and expenses. Excludes crypto asset held for platform user. Per unit price of crypto asset purchased. Disclosure of accounting policy for ethereum receivable and payable. Fees and expenses which are unexpected or unusual in nature, such as legal claims and liabilities and litigation costs or indemnification or other unanticipated expenses. Disclosure of accounting policy for fees, expenses and realized gain (loss). Financial highlights. Financial highlights. The value of Increase (decrease) in net assets from operation per share. Initial value of the funds assets on the basis of which fees is determined. The ordinary legal fees and expenses incurred, assumed by the Sponsor in exchange for the Sponsor's fee. Percentage of investment owned to net assets after deducting liabilities. The number of business days required for the transfer of ownership of Crypto asset. Number of seed creation units issued in cash transaction. Number of shares held by related party. Summary of changes in the shares issued and outstanding. Threshold multiples in which shares are issued. Threshold value of the fund's assets on the basis of which Sponsor's fee is determined. Ethereum [Member] Frankin resources inc. Franklin Ethereum ETF. Seed Creation Units. Sponsor. Accounting policies. Commitments and contingent liabilities. Related Party [Member] Cybersecurity Risk Role of Management [Text Block] City Area Code Number of Operating Segments Entity Small Business Entity Address, City or Town Condensed Statement of Income Captions [Line Items] Investment Company, Net Asset Value, Per Share, Period Increase (Decrease) Entity Voluntary Filers Assets [Abstract] Crypto Asset, Unrealized Gain (Loss), Operating and Nonoperating Non-Rule 10b5-1 Arrangement Terminated [Flag] Document Financial Statement Error Correction [Flag] Net Realized And Change In Unrealized Gain Loss On Investment In Ether Abstract Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Payments for Repurchase of Equity Basis of Accounting, Policy [Policy Text Block] Crypto Asset, Fair Value Local Phone Number Stock Issued During Period, Value, New Issues Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Auditor Name Concentration Risk Disclosure [Text Block] Entity Well-known Seasoned Issuer Noninvestment Assets Less Noninvestment Liabilities Stock Issued During Period, Shares, New Issues Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Fair Value Measurement, Policy [Policy Text Block] Segment Reporting Information [Line Items] Investment Company, Capital Share Transaction, Increase (Decrease) Title of 12(b) Security Cybersecurity Risk Management Third Party Engaged [Flag] Crypto Asset, Cost Security Exchange Name Assets Liabilities Number Of Shares Held By Related Party Net Asset Value Per Share Legal Fees And Expenses Assumed By Sponsor Subsequent Events [Text Block] Entity Address, State or Province Entity Shell Company Entity Common Stock, Shares Outstanding Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Number Of Seed Creation Units Issued Rule 10b5-1 Arrangement Terminated [Flag] Investment Holdings, Other than Securities [Line Items] Seed Creation Units Member Extraordinary Or Non Routine Expenses Shares, Issued Net Investment Income Crypto Asset Price Per Unit Ethereum Member Investment Company, Investment Income (Loss) from Operations, Per Share Cybersecurity Risk Management Processes Integrated [Text Block] Net Assets Percentage Of Net Assets Value Non-Rule 10b5-1 Arrangement Adopted [Flag] Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Summary Of Changes In The Shares Issued And Outstanding Table Text Block Crypto Asset, Activity [Table Text Block] Investment Company, Total Return Ratio To Average Net Assets Abstract Payment for Purchase, Investment, Operating Activity Entity Address, Address Line One Income Tax, Policy [Policy Text Block] Entity Incorporation, State or Country Code Maximum [Member] Crypto Asset, Payment for Service Cash Abstract Amendment Flag Sponsor Fees Cybersecurity Risk Management Processes Integrated [Flag] Crypto Asset, Realized and Unrealized Gain (Loss), Operating and Nonoperating Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Loss Contingencies [Line Items] Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Change In Operating Assets And Liabilities Abstract Cybersecurity Risk Management, Strategy, and Governance [Abstract] Stock Repurchased and Retired During Period, Value Entity Central Index Key Crypto Asset [Text Block] Auditor Location Document Annual Report Significant Accounting Policies [Text Block] Liabilities Abstract0 Entity Registrant Name Commitments and Contingencies Adjustments To Reconcile Net Increase Decrease In Net Assets Resulting From Operations To Net Cash Provided By Used In Operating Activities Abstract Frankin Resources Inc Member Insider Trading Arrangements [Line Items] Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Investment Company, Investment Income (Loss) Ratio Related Party Transactions Disclosure [Text Block] Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Increase Decrease In Net Assets From Operation Per Share Threshold Multiples In Which Shares Are Issued Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Accounting Policies Line Items Cybersecurity Risk Management Positions or Committees Responsible [Flag] Crypto Asset Number Of Units Sold For Service Threshold Value Of The Funds Assets On The Basis Of Which Sponsors Fee Is Determined Equity, Attributable to Parent Entity Ex Transition Period Net Realized And Change In Unrealized Gain Loss On Investment In Ether Abstract0 Noninvestment Asset Less Noninvestment Liability, Percent of Net Asset Fees Expenses And Realized Gain Loss Policy Text Block Investment Company, Expense Ratio after Incentive Allocation Nature of Operations [Text Block] Ethereum Receivable And Payable Policy Text Block Financial Highlights Table Text Block Assets Abstract0 Management and Service Fees, Base Rate Notes Payable, Related Party [Extensible Enumeration] Current Fiscal Year End Date Subsequent Event [Line Items] Cybersecurity Risk Board of Directors Oversight [Text Block] ICFR Auditor Attestation Flag Management Fee Payable Crypto Asset Number Of Units Sold Segment Reporting Disclosure [Text Block] Earnings Per Share, Policy [Policy Text Block] Concentration Risk [Line Items] Document Fiscal Year Focus Increase (Decrease) in Management Fee Payable Entity Address, Postal Zip Code Crypto Asset Number Of Units Per Share Initial Seed Shares Member Entity Current Reporting Status Entity Emerging Growth Company Crypto Asset, Realized Gain (Loss), Operating and Nonoperating Rule 10b5-1 Arrangement Adopted [Flag] Contingencies Disclosure [Text Block] Sponsor Member Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Proceeds from Disposition of Investment, Operating Activity Stock Redeemed or Called During Period, Shares Cash Flows From Operating Activities Abstract Auditor Firm ID Document Transition Report Cash Flows From Financing Activities Abstract Financial Highlights Text Block Net Assets Net Income (Loss) Attributable to Parent Common Stock, No Par Value Ratio To Average Net Assets Abstract0 Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement [Abstract] Document Fiscal Period Focus Investment Company, Expense Offset Arrangement Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Common Stock, Shares Authorized, Unlimited [Fixed List] Crypto Asset, Purchase Document Type Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Investment Company, Gain (Loss) on Investment, Per Share Shares, Outstanding Entity Tax Identification Number Entity File Number Shares Issued, Price Per Share Commitments and Contingencies Disclosure [Text Block] Document Period End Date Entity Public Float Crypto Asset Number Of Units Held Proceeds from Issuance of Common Stock Crypto Asset Number Of Units Per Creation Unit Entity Interactive Data Current Investment Owned, Net Assets, Percentage Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash Abstract Abstract Entity Filer Category Commitments And Contingent Liabilities Line Items Franklin Ethereum ETFMember Investment Company, Expense Ratio before Incentive Allocation Liabilities [Abstract] Related Party Transaction [Line Items] Crypto Asset, Sale Initial Value Of The Funds Assets On The Basis Of Which Fees Is Determined Number Of Business Days To Transfer Ownership Of Crypto Asset Trading Symbol Investment Company, Financial Highlights [Line Items] Creation And Redemption Of Shares Policy Text Block Investment Company, Capital Share Transaction, Increase (Decrease) [Abstract] Accrued Sponsor Fee