Statement of Assets and Liabilities [Abstract] Total assets Total liabilities Net assets Beginning of period End of period Net Assets, Fair Value Statement of Operations [Abstract] Total expenses Net expenses Net investment loss Net investment loss Net realized gain (loss) on investment in avalanche Net realized gain (loss) from investment in avalanche Net realized loss on investment in AVAX Net increase in net assets resulting from operations Statement of Changes in Net Assets [Abstract] Net increase in capital share transactions Net increase in net assets Schedule of Investment [Abstract] Total Investment in Avalanche – 100.00% Organization [Abstract] Significant Accounting Policies [Abstract] Fair Value Hierarchy and NAV [Axis] Beginning balance (in Avalanche) Ending balance (in Avalanche) Quantity of Avalanche (in Avalanche) Quantity of Avalanche Beginning balance, Fair Value Ending balance, Fair Value Investment in avalanche, at fair value (cost $2,500,000) Fair Value Investment in AVAX Measurement Input Type [Axis] Trust Expenses and Other Agreements [Abstract] Related Parties [Abstract] Capital Share Transactions [Abstract] Beginning of period End of period Beginning of period End of period Commitments and Contingent Liabilities [Abstract] Concentration Risk [Abstract] Subsequent Event Review [Abstract] Assets Investment in avalanche, at cost Cost Liabilities Accrued Sponsor fee Shares issued (in Shares) Shares issued Shares outstanding (in Shares) Shares par value (in Dollars per share) Shares authorized, unlimited Net Asset Value per Share (in Dollars per share) Expenses Sponsor fee, related party Sponsor fee Net realized gain (loss) and net change in unrealized appreciation (depreciation) Avalanche distributed for Sponsor fee, related party Net change in unrealized appreciation (depreciation) from investment in avalanche Net change in unrealized appreciation (depreciation) from investments in avalanche Net unrealized appreciation (depreciation) from investment in AVAX Net realized gain (loss) and net change in unrealized appreciation (depreciation) Net increase from operations Capital Share transactions Contributions for shares issued Shares issued Net assets: Total Investment in Avalanche, % of Net Assets Ownership percentage of net assets Liabilities in Excess of Other Assets Liabilities in Excess of Other Assets, % of Net Assets % of Net Assets Sponsor fee waiver, related party Withdrawals for shares redeemed Organization Significant Accounting Policies Summary of Fair value Hierarchy Assets Schedule of Changes in Quantity of AVAX and Fair Value AVAX purchased (in Avalanche) AVAX purchased AVAX sold (in Avalanche) AVAX sold Trust Expenses and Other Agreements Related Parties Capital Share Transactions Schedule of Share and Capital Activity Shares issued Stock issued during the period, new issues (in Shares) Commitments and Contingent Liabilities Concentration Risk Subsequent Event Review Shares redeemed Shares redeemed Level 1 [Member] Level 2 [Member] Level 3 [Member] Quantity Of Avax [Member] Fair Value [Member] Subsequent Event Type [Axis] Class of Stock [Axis] Sale of Stock [Axis] Ownership [Axis] Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Cybersecurity Risk Management Processes Integrated [Text Block] Cybersecurity Risk Management Processes Integrated [Flag] Cybersecurity Risk Management Third Party Engaged [Flag] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Cybersecurity Risk Board of Directors Oversight [Text Block] Cybersecurity Risk Role of Management [Text Block] Cybersecurity Risk Management Positions or Committees Responsible [Flag] Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Year of inception Number of operating segments Sponsor fees at monthly rate of average daily net assets Shares issued, price per share (in Dollars per share) Proceeds from issuance of common stock Trust shares authorized (in Shares) Basis of Preparation Use of Estimates Cash Investment Valuation Avalanche Calculation of Net Asset Value Federal Income Taxes Segment Reporting Subsequent Event [Member] Seed Capital Investor [Member] Seed Creation Baskets [Member] Secondary Market [Member] Coinbase Custody Trust Company, LLC [Member] Schedule of Investments [Table] Schedule of Investment [Abstract] Fair Value Hierarchy and NAV [Domain] Fair Value, off-Balance-Sheet Risk [Table] Significant Accounting Policies [Abstract] Measurement Input Type [Domain] Significant Accounting Policies [Table] Schedule of Changes in Quantity of AVAX [Line Items] Cybersecurity Risk Management, Strategy, and Governance [Table] Cybersecurity Risk Management, Strategy, and Governance [Line Items] Subsequent Event Type [Domain] Trust Expenses and Other Agreements [Table] Trust Expenses and Other Agreements [Line Items] Class of Stock [Domain] Related Party Transaction [Table] Related Parties [Line Items] Sale of Stock [Domain] Subsidiary or Equity Method Investee, Sale of Stock, Type [Table] Capital Share Transactions [Line Items] Ownership [Domain] Concentration Risk [Table] Concentration Risk [Line Items] Accrued sponsor fee. Disclosure of accounting policy for avalanche. Tabular disclosure of changes in quantity of Avalanche and respective fair value. Number of restricted and unrestricted crypto asset units held. Excludes crypto asset units held for platform user. 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. Percentage of investment owned to net assets after deducting liabilities. Net realized gain (loss) on ether distributed for sponsor fee, related party. Percentage amount paid to the sponsor for management of the day-to-day business functions of the LLC or LP including the fee rate, basis of calculation, relevant accounting period, whether the fee is paid to an entity other than the managing average daily net assets, or whether the fee is waived. Disclosure of trust expenses and other agreements. The year in which the entity was formed, organized, or commenced operations. Represents the number of AVAX units attributable to the specified member, category, or component as of the reporting date. Secondary market sale of stock by a private company to the public. Initial Seed investor means securities issued before an Issuer's IPO, or by a private Target Company before a reverse take-over bid, change of business or Qualifying Transaction, regardless of whether the securities are subject to resale restrictions or are free trading. Seed creation baskets. Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. This table lists the significant accounting policies. Cybersecurity Risk Role of Management [Text Block] Avalanche Policy Text Block Segment Reporting, Policy [Policy Text Block] Number of Operating Segments Use of Estimates, Policy [Policy Text Block] Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Fair Value, Inputs, Level 3 [Member] Related Party Transactions Disclosure [Text Block] Assets [Abstract] Fair Value, Assets Measured on Recurring Basis [Table Text Block] Crypto Asset, Unrealized Gain (Loss), Operating and Nonoperating Net Realized Gain Loss On Ether Distributed For Sponsor Fee Related Party Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Basis of Accounting, Policy [Policy Text Block] Crypto Asset, Fair Value Stock Issued During Period, Value, New Issues Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Concentration Risk Disclosure [Text Block] Year Of Inception Common Stock, Value, Outstanding Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Cybersecurity Risk Management Positions or Committees Responsible [Flag] Noninvestment Assets Less Noninvestment Liabilities Stock Issued During Period, Shares, New Issues Fair Value, Inputs, Level 1 [Member] Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Fair Value Measurement, Policy [Policy Text Block] Investment Company, Capital Share Transaction, Increase (Decrease) Trust Expensesand Other Agreements Text Block Cybersecurity Risk Management Third Party Engaged [Flag] Noninvestment Asset Less Noninvestment Liability, Percent of Net Asset Nature of Operations [Text Block] Cash and Cash Equivalents, Policy [Policy Text Block] Crypto Asset, Cost Portion at Fair Value Measurement [Member] Schedule of Investments [Line Items] Assets Liabilities Net Asset Value Per Share Net Income (Loss), Including Portion Attributable to Noncontrolling Interest [Abstract] Subsequent Events [Text Block] Cybersecurity Risk Board of Directors Oversight [Text Block] Crypto Asset Number Of Units Purchased Crypto Asset Number Of Units Sold Earnings Per Share, Policy [Policy Text Block] Schedule of Stockholders Equity [Table Text Block] Common Stock, Shares, Outstanding Crypto Asset, Realized Gain (Loss), Operating and Nonoperating Crypto Asset, Realized and Unrealized Gain (Loss), Operating and Nonoperating [Abstract] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Shares, Issued Net Investment Income Stock Redeemed or Called During Period, Shares Seed Capital Investor Member Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items] Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Cybersecurity Risk Management Processes Integrated [Text Block] Net Assets Percentage Of Net Assets Value Net Assets Common Stock, No Par Value Sale of Stock, Number of Shares Issued in Transaction Fair Value, Inputs, Level 2 [Member] Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement Equity [Text Block] Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement [Abstract] Investment Company, Expense Offset Arrangement Secondary Market Member Operating Expenses Coinbase Custody Trust Company LLCMember Common Stock, Shares Authorized, Unlimited [Fixed List] Income Tax, Policy [Policy Text Block] Crypto Asset, Purchase Shares, Outstanding Quantity Of Avax Member