| Label | Element | Value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Range Global Coal Index ETF | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk/Return [Heading] | rr_RiskReturnHeading | Range Global Coal Index ETF | |||||||||
| Objective [Heading] | rr_ObjectiveHeading | Investment Objective | |||||||||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock |
The Range Global Coal Index ETF (the “Fund”) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of the Range Global Coal Index (the “Index”). |
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| Expense [Heading] | rr_ExpenseHeading | Fees and Expenses | |||||||||
| Expense Narrative [Text Block] | rr_ExpenseNarrativeTextBlock |
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below. |
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| Operating Expenses Caption [Text] | rr_OperatingExpensesCaption | Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | |||||||||
| Portfolio Turnover [Heading] | rr_PortfolioTurnoverHeading | Portfolio Turnover | |||||||||
| Portfolio Turnover [Text Block] | rr_PortfolioTurnoverTextBlock |
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when shares of the Fund are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example above, affect the Fund’s performance. For the fiscal period January 23, 2024 (commencement of operations) through November 30, 2024, the Fund’s portfolio turnover rate was 18% of the average value of its portfolio. |
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| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 18.00% | |||||||||
| Expense Example [Heading] | rr_ExpenseExampleHeading | Example | |||||||||
| Expense Example Narrative [Text Block] | rr_ExpenseExampleNarrativeTextBlock |
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your cost would be: |
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| Strategy [Heading] | rr_StrategyHeading | Principal Investment Strategies | |||||||||
| Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock |
The Fund normally invests in securities comprising the Index. The Index is designed to track the performance of companies that are involved in the metallurgical (met) and thermal coal industry (the “Coal Industry”), which includes production, exploration, development, transportation, and distribution (“Coal Companies”). Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in securities of Coal Companies.
The universe of eligible index components consists of exchange-listed equity securities of Coal Companies including common stock, depositary receipts, and master limited partnerships (“MLPs”). Such companies are identified by Range Fund Holdings, LLC (the “Index Provider”) through the use of a proprietary selection methodology that includes a review of industry publications, sell side research, and fundamental research, as well as meetings with management. The companies are classified into one of the following categories:
Companies eligible for inclusion based on their exposure to the Coal Industry are those companies that have publicly disclosed through regulatory filings (e.g., Form 10-K, 10-Q, 20-F, and 8-K filings), quarterly earnings reports, company presentations or official earnings conference call transcripts either that they currently provide or intend to provide or operate services in, to, or in connection with the Coal Industry. Companies that have made such public announcements through regulatory filings or other official communications are included in the Index because such announcements are an indication of the significance of what the company has held out as its current or future activities. In any event, there can be no guarantee that a company’s activities in the Coal Industry will become significant for the company or that its economic fortunes will be tied to such activities in the future. In constructing the Index, securities are weighted according to market capitalization. A single security cap of 10% is applied for Pure Play securities and Pre-Revenue securities. Diversified securities are subject to a single security cap of 3%. Any single security that does not reach a 0.5% allocation is excluded. If a security’s cap is reached, excess weight is distributed proportionately among uncapped securities. No more than five securities in the Index have a weight over 4.75% and the aggregate weight of all components with a weight greater than 5% is capped at 49.5%.
To the extent the Index includes securities of MLPs, the aggregate exposure to such MLPs is capped at 25%. Special Purpose Acquisition Company (SPAC) targets are eligible for inclusion once they are trading on a public exchange as the target entity, provided they meet all other eligibility criteria. The Index consists of securities of issuers from around the world, including emerging markets countries, but excludes issuers domiciled and/or listed on exchanges in China or Russia. There is no limitation on the amount of foreign or emerging market securities that may be included in the Index. Under normal market conditions, the Fund invests in at least three different countries and invests at least 40% (30% in unfavorable market conditions) of its assets in companies organized or located in countries outside the United States. As of March 3, 2025, a significant portion of the Index consisted of securities of United States issuers.
To be initially included in the Index, the market capitalization of a company must be at least $100 million, and to remain in the Index a company must maintain a minimum market capitalization of $50 million. As of March 3, 2025, the Index was comprised of 29 component securities.
The Index is reconstituted and rebalanced on a semi-annual basis at the end of March and September. Deletions from the Index may be made at any time due to changes in business, mergers, acquisitions, bankruptcies, suspensions, de-listings and spin-offs. New constituents will not be added to the Index in between rebalances. The Index is unmanaged and cannot be invested in directly.
The Fund employs a “passive management” investment strategy designed to track the performance of the Index. Exchange Traded Concepts, LLC (the “Adviser”) generally uses a replication methodology, meaning it invests in all of the securities comprising the Index in proportion to their respective weightings in the Index. However, the Adviser may utilize a sampling methodology under various circumstances, including when it may not be possible or practicable to purchase all of the securities in the Index. The Adviser expects that over time, if the Fund has sufficient assets, the correlation between the Fund’s performance, before fees and expenses, and that of the Index will be 95% or better. A figure of 100% would indicate perfect correlation.
The Fund may invest up to 20% of its assets in investments that are not included in the Index, but that the Adviser believes will help the Fund track the performance of the Index.
The Fund will concentrate its investments (i.e., invest more than 25% of its total assets) in a particular industry or group of industries to approximately the same extent that the Index concentrates in an industry or group of industries. As of March 3, 2025, the Index was concentrated in the Coal Industry. In addition, in replicating the Index, the Fund may from time to time invest a significant portion of its assets in the securities of companies in one or more sectors. As of March 3, 2025, a significant portion of the Index consisted of companies in the Energy Sector.
The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 (the “1940 Act”) and, therefore, may invest a greater percentage of its assets in a particular issuer than a diversified fund.
The Index Provider developed the methodology for determining the securities to be included in the Index and is responsible for the ongoing maintenance of the Index, oversight of the implementation of the index methodology, and changes in classification of the securities in the Index (such as from Pre-Revenue to Pure Play, for example).
The Index is calculated and published by Indxx, LLC (the “Index Calculator”). The Index Calculator is responsible for implementing the semi-annual rebalance and reconstitution and monitoring and implementing any adjustments, additions and deletions to the Index based on the index methodology and certain corporate actions, such as initial public offerings, mergers, acquisitions, bankruptcies, suspensions, de-listings, tender offers and spin-offs. Neither the Index Provider nor the Index Calculator is affiliated with each other or with the Fund or the Adviser. |
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| Strategy Portfolio Concentration [Text] | rr_StrategyPortfolioConcentration | Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in securities of Coal Companies. | |||||||||
| Risk [Heading] | rr_RiskHeading | Principal Risks | |||||||||
| Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | Performance Information | |||||||||
| Performance Narrative [Text Block] | rr_PerformanceNarrativeTextBlock |
The Fund commenced operations on January 23, 2024, and therefore, does not have performance for a full calendar year. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by comparing the Fund’s return to a broad measure of market performance. |
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| Performance Information Illustrates Variability of Returns [Text] | rr_PerformanceInformationIllustratesVariabilityOfReturns | Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by comparing the Fund’s return to a broad measure of market performance. | |||||||||
| Performance One Year or Less [Text] | rr_PerformanceOneYearOrLess | The Fund commenced operations on January 23, 2024, and therefore, does not have performance for a full calendar year. | |||||||||
| Range Global Coal Index ETF | Risk Lose Money [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock | As with all funds, a shareholder is subject to the risk that his or her investment could lose money. | |||||||||
| Range Global Coal Index ETF | Risk Not Insured Depository Institution [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock | An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any government agency. | |||||||||
| Range Global Coal Index ETF | Risk Nondiversified Status [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock | The Fund is non-diversified under the 1940 Act, meaning that, as compared to a diversified fund, it can invest a greater percentage of its assets in securities issued by or representing a small number of issuers. As a result, the performance of these issuers can have a substantial impact on the Fund’s performance. | |||||||||
| Range Global Coal Index ETF | Common Stock Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Common Stock Risk. Common stock holds the lowest priority in the capital structure of a company, and therefore takes the largest share of the company’s risk and its accompanying volatility. The value of the common stock held by the Fund may fall due to general market and economic conditions, perceptions regarding the industries in which the issuers of securities held by the Fund participate, or facts relating to specific companies in which the Fund invests. |
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| Range Global Coal Index ETF | Currency Exchange Rate Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Currency Exchange Rate Risk. To the extent the Fund invests in securities denominated in non-U.S. currencies, changes in currency exchange rates and the relative value of non-U.S. currencies will affect the value of the Fund’s investment and the value of your shares. Because the Fund’s net asset value (“NAV”) is determined in U.S. dollars, the Fund’s NAV could decline if the currency of the non-U.S. market in which the Fund invests depreciates against the U.S. dollar, even if the value of the Fund’s holdings, measured in the foreign currency, increases. Currency exchange rates can be very volatile and can change quickly and unpredictably. As a result, the value of an investment in the Fund may change quickly and without warning and you may lose money. |
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| Range Global Coal Index ETF | Cybersecurity Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Cybersecurity Risk. The Fund is susceptible to operational risks through breaches in cybersecurity. A breach in cybersecurity refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cybersecurity breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cybersecurity breaches of the issuers of securities in which the Fund invests or the Fund’s third-party service providers, such as its administrator, transfer agent, custodian, or sub-adviser, as applicable, can also subject the Fund to many of the same risks associated with direct cybersecurity breaches. Although the Fund has established risk management systems designed to reduce the risks associated with cybersecurity, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cybersecurity systems of issuers or third-party service providers. |
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| Range Global Coal Index ETF | Deferred Tax Liability Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Deferred Tax Liability Risk. Cash distributions from an MLP to the Fund that exceed the Fund’s allocable share of the MLP’s taxable income are considered return of capital that reduce the Fund’s adjusted tax basis in the Fund’s MLP equity securities. Such distributions are not ordinarily subject to tax at the time of distribution unless the distributions exceed the Fund’s adjusted tax basis in the Fund’s MLP equity securities. The reductions in the Fund’s adjusted tax basis in Fund’s interest in the MLP will increase the amount of gain (or decrease the amount of loss) recognized by the Fund on a subsequent sale of the MLP equity securities. The Fund will accrue deferred income taxes for any future tax liability associated with: (i) that portion of MLP distributions considered to be a tax-deferred return of capital; and (ii) capital appreciation of its investments. Upon the sale of an MLP security, the Fund may be liable for previously deferred taxes. The Fund’s accrued deferred tax liability will be reflected each day in the Fund’s net asset value (“NAV”). Increases in deferred tax liability will decrease NAV. Conversely, decreases in deferred liability will increase NAV. The Fund will rely to some extent on information provided by the MLPs, which is not necessarily timely, to estimate deferred tax liability for purposes of financial statement reporting and determining the NAV. From time to time, the Fund will modify the estimates or assumptions regarding the Fund’s deferred tax liability as new information becomes available. The Fund’s estimates regarding its deferred tax liability are made in good faith; however, the daily estimate of the Fund’s deferred tax liability used to calculate the Fund’s NAV could vary significantly from the Fund’s actual tax liability. The Fund will generally compute deferred income taxes based on the federal income tax rate applicable to corporations and an assumed rate attributable to state taxes. |
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| Range Global Coal Index ETF | Depositary Receipt Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Depositary Receipt Risk. Depositary receipts such as American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) are subject to the risks associated with investing directly in foreign securities. In addition, investments in depositary receipts may be less liquid than the underlying shares in their primary trading market. |
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| Range Global Coal Index ETF | Early Close/Trading Halt Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Early Close/Trading Halt Risk. An exchange or market may close or issue trading halts on specific securities, or the ability to buy or sell certain securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell certain securities or financial instruments. In such circumstances, the Fund may be unable to rebalance its portfolio, may be unable to accurately price its investments and/or may incur substantial trading losses. |
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| Range Global Coal Index ETF | Emerging Markets Securities Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Emerging Markets Securities Risk. Emerging markets are subject to greater market volatility, lower trading volume, political and economic instability, uncertainty regarding the existence of trading markets and more governmental limitations on foreign investment than more developed markets. In addition, securities in emerging markets may be subject to greater price fluctuations than securities in more developed markets. Differences in regulatory, accounting, auditing, and financial reporting and recordkeeping standards could impede the Adviser’s ability to evaluate local companies and impact the Fund’s performance. Investments in securities of issuers in emerging markets may also be exposed to risks related to a lack of liquidity, greater potential for market manipulation, issuers’ limited reliable access to capital, and foreign investment structures. Additionally, the Fund may have limited rights and remedies available to it to pursue claims against issuers in emerging markets. |
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| Range Global Coal Index ETF | Foreign Securities Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Foreign Securities Risk. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to expropriation, nationalization or adverse political or economic developments. Foreign securities may have relatively low market liquidity and decreased publicly available information about issuers. Investments in non-U.S. securities also may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Non-U.S. issuers may also be subject to inconsistent and potentially less stringent accounting, auditing, financial reporting and investor protection standards than U.S. issuers. These and other factors can make investments in the Fund more volatile and potentially less liquid than other types of investments. In addition, where all or a portion of the Fund’s portfolio holdings trade in markets that are closed when the Fund’s market is open, there may be valuation differences that could lead to differences between the Fund’s market price and the value of the Fund’s portfolio holdings. |
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| Range Global Coal Index ETF | Geographic Investment Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Geographic Investment Risk. To the extent the Fund invests a significant portion of its assets in the securities of companies of a single country or region, it is more likely to be impacted by events or conditions affecting that country or region. As of March 3, 2025, a significant portion of the Index consisted of securities of United States issuers.
Investing in the United States Risk. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. |
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| Range Global Coal Index ETF | Index Tracking Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Index Tracking Risk. The Fund’s return may not match or achieve a high degree of correlation with the return of the Index. To the extent the Fund utilizes a sampling approach, it may experience tracking error to a greater extent than if the Fund sought to replicate the Index. |
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| Range Global Coal Index ETF | Industry Concentration Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Industry Concentration Risk. Because the Fund’s assets will be concentrated in an industry or group of industries to the extent the Index concentrates in a particular industry or group of industries, the Fund is subject to loss due to adverse occurrences that may affect that industry or group of industries. The list below is not a comprehensive list of the industries to which the Fund may have exposure over time and should not be relied on as such. As of March 3, 2025, the Index was concentrated in the Coal Industry.
Coal Industry Risk. Coal companies are subject to declines in the demand for and prices of coal. Demand variability can be based on weather conditions, the strength of the domestic economy, the level of coal stockpiles in their customer base, and the prices of competing sources of fuel for electric generation. They are also subject to supply variability based on geological conditions that reduce the productivity of mining operations, the availability of regulatory permits for mining activities and the availability of coal that meets the standards of the Clean Air Act. Coal companies also are subject to risks of changes in exchange rates, international politics and government regulation, taxes, world events, terrorist attacks, the success of exploration projects, depletion of resources and economic conditions, reduced demand as a result of increases in government policies and regulations, energy efficiency and energy conservation efforts, as well as market, economic and political risks of the countries where energy companies are located or do business. |
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| Range Global Coal Index ETF | Issuer-Specific Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Issuer-Specific Risk. Fund performance depends on the performance of the issuers to which the Fund has exposure. Issuer-specific events, including changes in the financial condition of an issuer, can have a negative impact on the value of the Fund. |
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| Range Global Coal Index ETF | Large-Capitalization Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Large-Capitalization Risk. Returns on investments in securities of large companies could trail the returns on investments in securities of smaller and mid-sized companies or the market as a whole. The securities of large-capitalization companies may also be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes. |
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| Range Global Coal Index ETF | Limited Authorized Participants, Market Makers and Liquidity Providers Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Limited Authorized Participants, Market Makers and Liquidity Providers Risk. Because the Fund is an ETF, only a limited number of institutional investors (known as “Authorized Participants”) are authorized to purchase and redeem shares directly from the Fund. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occurs, the risk of which is higher during periods of market stress, shares of the Fund may trade at a material discount to NAV, possibly face delisting, and may experience wide bid-ask spreads: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. |
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| Range Global Coal Index ETF | Market Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Market Risk. The market price of an investment could decline, sometimes rapidly or unpredictably, due to general market conditions that are not specifically related to a particular company, such as real or perceived adverse economic or political conditions throughout the world, changes in the general outlook for corporate earnings, changes in interest or currency rates, or adverse investor sentiment generally. The market value of an investment also may decline because of factors that affect a particular industry or industries such as labor shortages, increased production costs, and competitive conditions. Local, regional, or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues, recessions, or other events could have a significant impact on the market generally and on specific investments. For example, in recent years, the COVID-19 pandemic, the large expansion of government deficits and debt as a result of government actions to mitigate the effects of the pandemic, Russia’s invasion of Ukraine, and the rise of inflation have resulted in extreme volatility in the global economy and in global financial markets. Economies and financial markets throughout the world are becoming increasingly interconnected. As a result, whether or not the Fund invests in securities of issuers located in or with significant exposure to countries experiencing economic and financial difficulties, the value and liquidity of the Fund’s investments may be negatively affected. |
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| Range Global Coal Index ETF | Master Limited Partnership Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Master Limited Partnership Risk. MLPs are subject to certain risks inherent in the structure of MLPs, including tax risks, limited control and voting rights and potential conflicts of interest. MLPs that concentrate in a particular industry or a particular geographic region are subject to risks associated with such industry or region. Securities issued by MLPs may experience limited trading volumes and, thus, may be relatively illiquid or volatile at times. As partnerships, MLPs may be subject to less regulation (and less protection for investors) under state laws than corporations. In addition, MLPs may be subject to state taxation in certain jurisdictions, which may reduce the amount of income an MLP pays to its investors. |
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| Range Global Coal Index ETF | Methodology Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Methodology Risk. The Fund seeks to track the performance of stocks of companies selected using a methodology developed by the Index Provider. No assurance can be given that companies selected according to the methodology will outperform stocks of other companies. Moreover, there is no guarantee that the methodology will generate or produce the intended results. |
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| Range Global Coal Index ETF | Micro-Capitalization Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Micro-Capitalization Risk. The micro-capitalization companies in which the Fund may invest may be more vulnerable to adverse business or economic events than larger, more established companies, and may underperform other segments of the market or the equity market as a whole. Securities of micro-capitalization companies generally trade in lower volumes, are often more vulnerable to market volatility, and are subject to greater and more unpredictable price changes than larger capitalization stocks or the stock market as a whole. |
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| Range Global Coal Index ETF | Smaller Fund Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Smaller Fund Risk. A smaller fund is subject to the risk that its performance may not represent how the fund is expected to or may perform in the long term. In addition, smaller funds may not attract sufficient assets to achieve investment and trading efficiencies. There can be no assurance that the Fund will achieve an economically viable size, in which case it could ultimately liquidate. The Fund may be liquidated by the Board of Trustees (the “Board”) without a shareholder vote. In a liquidation, shareholders of the Fund will receive an amount equal to the Fund’s NAV, after deducting the costs of liquidation, including the transaction costs of disposing of the Fund’s portfolio investments. Receipt of a liquidation distribution may have negative tax consequences for shareholders. Additionally, during the Fund’s liquidation all or a portion of the Fund’s portfolio may be invested in a manner not consistent with its investment objective and investment policies. |
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| Range Global Coal Index ETF | Non-Diversification Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Non-Diversification Risk. The Fund is non-diversified under the 1940 Act, meaning that, as compared to a diversified fund, it can invest a greater percentage of its assets in securities issued by or representing a small number of issuers. As a result, the performance of these issuers can have a substantial impact on the Fund’s performance. |
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| Range Global Coal Index ETF | Operational Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Operational Risk. The Fund and its service providers may experience disruptions that arise from human error, processing and communications errors, counterparty or third-party errors, technology or systems failures, any of which may have an adverse impact on the Fund. |
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| Range Global Coal Index ETF | Passive Investment Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Passive Investment Risk. The Fund is not actively managed and, therefore, the Fund would not sell a security due to current or projected underperformance of the security, industry, or sector unless that security is removed from the Index or selling the security is otherwise required upon a rebalancing of the Index. |
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| Range Global Coal Index ETF | Risk of Investing in Coal Companies [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Risk of Investing in Coal Companies. Companies involved in activities relating to the exploration for, mining of, and other related activities for coal face risks due to supply and demand variability. Weather conditions, a strong or weak domestic economy, the price levels of competing sources of fuel, political instability and conservation efforts may affect the demand for coal. The productivity of mining operations may be reduced by geological conditions, regulatory permits for mining activities and the availability of coal that meets standards set forth in the Clean Air Act, as amended in 1990. Companies involved in activities relating to the exploration for, mining of, and other related activities for coal are also impacted by the level and volatility of commodity prices, the exchange value of the dollar, import controls, worldwide competition, liability for environmental damage, depletion of resources and mandated expenditures for safety and pollution control devices. In addition, companies in this industry may be significantly affected by the occurrence of certain events relating to international political and economic developments, the success of exploration projects and tax and other government regulations. A primary risk of the coal industry is the competitive risk associated with the prices of alternative fuels, such as natural gas and oil. For example, consumers of coal often have the ability to switch between the use of coal, oil or natural gas. As a result, during periods when competing fuels are less expensive, the revenues of companies in the coal industry may decline with a corresponding impact on earnings. |
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| Range Global Coal Index ETF | Sector Focus Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Sector Focus Risk. The Fund may invest a significant portion of its assets in one or more sectors and thus will be more susceptible to the risks affecting those sectors. While the Fund’s sector exposure is expected to vary over time based on the composition of the Index, the Fund anticipates that it may be subject to some or all of the risks described below. As of March 3, 2025, a significant portion of the Index consisted of companies in the Energy Sector. Energy Sector Risk. The market value of securities in the energy sector may decline for many reasons including, fluctuations in energy prices and supply and demand of energy fuels caused by geopolitical events, the success of exploration projects, weather or meteorological events, taxes, increased governmental or environmental regulation, resource depletion, rising interest rates, declines in domestic or foreign production, accidents or catastrophic events that result in injury, loss of life or property, pollution or other environmental damage claims, terrorist threats or attacks, among other factors. Markets for various energy-related commodities can have significant volatility and are subject to control or manipulation by large producers or purchasers. Companies in the energy sector may need to make substantial expenditures, and may incur significant amounts of debt, to maintain or expand their reserves through exploration of new sources of supply, through the development of existing sources, through acquisitions, or through long-term contracts to acquire reserves. Factors adversely affecting producers, refiners, distributors, or others in the energy sector may adversely affect companies that service or supply those entities, either because demand for those services or products is curtailed, or those services or products come under price pressure. Issuers in the energy sector may also be impacted by changing investor and consumer preferences arising from the sector’s potential exposure to sustainability and environmental concerns. |
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| Range Global Coal Index ETF | MLP Tax Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
MLP Tax Risk. The Fund’s ability to meet its investment objective relies in part upon the level of taxable income it receives from the MLPs in which it invests, a factor over which the Fund has no control. The benefit the Fund derives from its investment in MLPs is largely dependent on their being treated as partnerships for U.S. federal income tax purposes. Partnerships do not pay U.S. federal income tax at the partnership level. Rather, each partner is allocated a share of the partnership’s income, gains, losses, deductions and expenses. A change in current tax law or a change in the underlying business mix of a given MLP could result in an MLP being treated as a corporation for U.S. federal income tax purposes, which would result in the MLP being required to pay U.S. federal income tax (as well as state and local income taxes) on its taxable income at the applicable corporate tax rate. This would have the effect of reducing the amount of cash available for distribution by an MLP and could result in a significant reduction in the value of the Fund’s investment. The classification of an MLP as a corporation for U. S. federal income tax purposes would have the effect of reducing the amount of cash available for distribution by the MLP and causing any such distributions received by the Fund to be taxed as dividend income to the extent of the MLP’s current or accumulated earnings and profits. To the extent a distribution received by the Fund from an MLP is treated as a return of capital, the Fund’s adjusted tax basis in the interests of the MLP may be reduced, which will result in an increase in the amount of income or gain (or decrease in the amount of loss) that will be recognized by the Fund for tax purposes upon the sale of any such interests or upon subsequent distributions in respect of such interests. Furthermore, any return of capital distribution received from an MLP may require the Fund to restate the character of its distributions and amend any shareholder tax reporting previously issued. See “Deferred Tax Liability Risk.” |
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| Range Global Coal Index ETF | Small- and Mid-Capitalization Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Small- and Mid-Capitalization Risk. The small-and mid-capitalization companies in which the Fund invests may be more vulnerable to adverse business or economic events than larger, more established companies, and may underperform other segments of the market or the equity market as a whole. Securities of small- and mid-capitalization companies generally trade in lower volumes, are often more vulnerable to market volatility, and are subject to greater and more unpredictable price changes than larger capitalization stocks or the stock market as a whole. |
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| Range Global Coal Index ETF | Trading Risk [Member] | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
Trading Risk. Shares of the Fund may trade on the NYSE Arca, Inc. (the “Exchange”) above (premium) or below (discount) their NAV. The NAV of shares of the Fund will fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will fluctuate continuously throughout trading hours based on market supply and demand and may deviate significantly from the value of the Fund’s holdings, particularly in times of market stress, with the result that investors may pay more or receive less than the underlying value of the Fund shares bought or sold. When buying or selling shares in the secondary market, you may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the Fund (bid) and the lowest price a seller is willing to accept for shares of the Fund (ask), which is known as the bid-ask spread. In addition, although the Fund’s shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. Trading in Fund shares may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in shares of the Fund inadvisable. In stressed market conditions, the market for the Fund’s shares may become less liquid in response to deteriorating liquidity in the markets for the Fund’s underlying portfolio holdings. In such a circumstance, the Fund’s shares could trade at a premium or discount to their NAV. |
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| Range Global Coal Index ETF | Range Global Coal Index ETF | |||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||
| Management Fee | rr_ManagementFeesOverAssets | 0.85% | |||||||||
| Distribution and Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | none | |||||||||
| Other Expenses | rr_OtherExpensesOverAssets | none | |||||||||
| Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 0.85% | |||||||||
| Expense Example, with Redemption, 1 Year | rr_ExpenseExampleYear01 | $ 87 | |||||||||
| Expense Example, with Redemption, 3 Years | rr_ExpenseExampleYear03 | 271 | |||||||||
| Expense Example, with Redemption, 5 Years | rr_ExpenseExampleYear05 | 471 | |||||||||
| Expense Example, with Redemption, 10 Years | rr_ExpenseExampleYear10 | $ 1,049 |