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Summary of Significant Accounting Policies (Policy) (Teucrium Wheat Fund [Member]) | 12 Months Ended
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Dec. 31, 2012
Teucrium Wheat Fund [Member] |
Basis of Presentation | Basis of Presentation The accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") as detailed in the Financial Accounting Standards Board's Accounting Standards Codification.
Revenue Recognition | Revenue Recognition Commodity futures contracts are recorded on the trade date. All such transactions are recorded on the identified cost basis and marked to market daily. Unrealized appreciation or depreciation on commodity futures contracts are reflected in the statements of operations as the difference between the original contract amount and the fair market value as of the last business day of the year or as of the last date of the financial statements. Changes in the appreciation or depreciation between periods are reflected in the statements of operations. Interest on cash equivalents and deposits with the Futures Commission Merchant are recognized on the accrual basis. The Fund earns interest on its assets denominated in U.S. dollars on deposit with the Futures Commission Merchant. In addition, the Fund earns interest on funds held at the custodian at prevailing market rates for such investments.
Brokerage Commissions | Brokerage Commissions Brokerage commissions on all open commodity futures contracts are accrued on a full-turn basis.
Income Taxes | Income Taxes For tax purposes, the Fund will be treated as a partnership. The Fund does not record a provision for income taxes because the partners report their share of the Fund's income or loss on their income tax returns. The financial statements reflect the Fund's transactions without adjustment, if any, required for income tax purposes. The Fund is required to determine whether a tax position is more likely than not to be sustained upon examination by the applicable taxing authority, including resolution of any related appeals or litigation processes, based on the technical merits of the position. The Fund files an income tax return in the U.S. federal jurisdiction, and may file income tax returns in various U.S. states and foreign jurisdictions. The Fund is subject to income tax examinations by major taxing authorities for all tax years since inception. The tax benefit recognized is measured as the largest amount of benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. De-recognition of a tax benefit previously recognized results in the Fund recording a tax liability that reduces net assets. Based on its analysis, the Fund has determined that it has not incurred any liability for unrecognized tax benefits as of and for the years ended December 31, 2012 and 2011. However, the Fund's conclusions regarding this policy may be subject to review and adjustment at a later date based on factors including, but not limited to, ongoing analysis of and changes to tax laws, regulations, and interpretations thereof. The Fund recognizes interest accrued related to unrecognized tax benefits and penalties related to unrecognized tax benefits in income tax fees payable, if assessed. No interest expense or penalties have been recognized as of and for the years ended December 31, 2012 and 2011. The Fund may be subject to potential examination by U.S. federal, U.S. state, or foreign jurisdictional authorities in the area of income taxes. These potential examinations may include questioning the timing and amount of deductions, the nexus of income among various tax jurisdictions, and compliance with U.S. federal, U.S. state and foreign tax laws. The Fund's management does not expect that the total amount of unrecognized tax benefits will materially change over the next twelve months.
Creations and Redemptions | Creations and Redemptions Authorized Purchasers may purchase Creation Baskets consisting of 25,000 shares from the Fund. The amount of the proceeds required to purchase a Creation Basket will be equal to the NAV of the shares in the Creation Basket determined as of 4:00 p.m. New York time on the day the order to create the basket is properly received. Authorized Purchasers may redeem shares from the Fund only in blocks of 25,000 shares called "Redemption Baskets." The amount of the redemption proceeds for a Redemption Basket will be equal to the NAV of the shares in the Redemption Basket determined as of 4:00 p.m. New York time on the day the order to redeem the basket is properly received. The size of a Creation Basket and a Redemption basket was changed effective March 5, 2012 from 50,000 to 25,000 shares. The Fund receives or pays the proceeds from shares sold or redeemed within three business days after the trade date of the purchase or redemption. The amounts due from Authorized Purchasers are reflected in the Fund's statements of assets and liabilities as receivable for shares sold. Amounts payable to Authorized Purchasers upon redemption are reflected in the Fund's statements of assets and liabilities as payable for shares redeemed. As outlined in the Amendment to the Form S-1 dated July 6, 2012, 50,000 represents two Redemption Baskets for the Fund and a minimum level of shares.
Allocation of Shareholder Income and Losses | Allocation of Shareholder Income and Losses Profit or loss is allocated among the shareholders of the Fund in proportion to the number of shares each shareholder holds as of the close of each month.
Cash Equivalents | Cash Equivalents Cash equivalents are highly-liquid investments with original maturity dates of three months or less at inception. The Fund reported its cash equivalents in the statements of assets and liabilities at market value, or at carrying amounts that approximate fair value, because of their highly-liquid nature and short-term maturities. The Fund has a substantial portion of its assets on deposit with banks. Assets deposited with the bank may, at times, exceed federally insured limits. The Fund had a balance of $3,356,906 and $2,022,024 in money market funds at December 31, 2012 and December 31, 2011, respectively; these balances are included in cash and cash equivalents on the statements of assets and liabilities.
Collateral, Due from/to Broker | Collateral, Due from/to Broker Margin is the minimum amount of funds that must be deposited by a commodity interest trader with the trader's broker to initiate and maintain an open position in futures contracts. A margin deposit acts to assure the trader's performance of the futures contracts purchased or sold. Futures contracts are customarily bought and sold on initial margin that represents a very small percentage of the aggregate purchase or sales price of the contract. Because of such low margin requirements, price fluctuations occurring in the futures markets may create profits and losses that, in relation to the amount invested, are greater than are customary in other forms of investment or speculation. As discussed below, adverse price changes in the futures contract may result in margin requirements that greatly exceed the initial margin. In addition, the amount of margin required in connection with a particular futures contract is set from time to time by the exchange on which the contract is traded and may be modified from time to time by the exchange during the term of the contract. Brokerage firms, such as the Fund's clearing brokers, carrying accounts for traders in commodity interest contracts generally require higher amounts of margin as a matter of policy to further protect themselves. Over-the-counter trading generally involves the extension of credit between counterparties, so the counterparties may agree to require the posting of collateral by one or both parties to address credit exposure. When a trader purchases an option, there is no margin requirement; however, the option premium must be paid in full. When a trader sells an option, on the other hand, he or she is required to deposit margin in an amount determined by the margin requirements established for the underlying interest and, in addition, an amount substantially equal to the current premium for the option. The margin requirements imposed on the selling of options, although adjusted to reflect the probability that out-of-the-money options will not be exercised, can in fact be higher than those imposed in dealing in the futures markets directly. Complicated margin requirements apply to spreads and conversions, which are complex trading strategies in which a trader acquires a mixture of options positions and positions in the underlying interest. Ongoing or "maintenance" margin requirements are computed each day by a trader's clearing broker. When the market value of a particular open futures contract changes to a point where the margin on deposit does not satisfy maintenance margin requirements, a margin call is made by the broker. If the margin call is not met within a reasonable time, the broker may close out the trader's position. With respect to the Fund's trading, the Fund (and not its shareholders personally) is subject to margin calls. Finally, many major U.S. exchanges have passed certain cross margining arrangements involving procedures pursuant to which the futures and options positions held in an account would, in the case of some accounts, be aggregated and margin requirements would be assessed on a portfolio basis, measuring the total risk of the combined positions.
Calculation of Net Asset Value | Calculation of Net Asset Value The Fund's NAV is calculated by:
| • | Taking the current market value of its total assets and
| • | Subtracting any liabilities.
The administrator, the Bank of New York Mellon, calculates the NAV of the Fund once each trading day. It calculates the NAV as of the earlier of the close of the NYSE or 4:00 p.m. New York time. The NAV for a particular trading day is released after 4:15 p.m. New York time. In determining the value of Wheat Futures Contracts, the administrator uses the CBOT closing price (currently 3:00 p.m. New York time). The administrator determines the value of all other Fund investments as of the earlier of the close of the NYSE or 4:00 p.m. New York time. The value of over-the-counter wheat interests is determined based on the value of the commodity or futures contract underlying such wheat interest, except that a fair value may be determined if the Sponsor believes that the Fund is subject to significant credit risk relating to the counterparty to such wheat interest. For purposes of financial statements and reports, the Sponsor will recalculate the NAV where necessary to reflect the "fair value" of a Futures Contract when the Futures Contract closes at its price fluctuation limit for the day. Treasury securities held by the Fund are valued by the administrator using values received from recognized third-party vendors and dealer quotes. NAV includes any unrealized profit or loss on open wheat interests and any other income or expense accruing to the Fund but unpaid or not received by the Fund. Market value per share represents the closing price on the last trading day of the quarter as reported by the NYSE Arca. If such a closing price is not available, the bid/ask midpoint at 4 p.m. as reported by the NYSE Arca was used.
Sponsor Fee and Allocation of Expenses | Sponsor Fee and Allocation of Expenses The Sponsor is responsible for investing the assets of the Fund in accordance with the objectives and policies of the Fund. In addition, the Sponsor arranges for one or more third parties to provide administrative, custodial, accounting, transfer agency and other necessary services to the Fund. For these services, the Fund is contractually obligated to pay a monthly management fee to the Sponsor, based on average daily net assets, at a rate equal to 1.00% per annum. For the year ended December 31, 2012, the Fund recorded $32,754 in management fees to the Sponsor. For the period from the commencement of operations (September 19, 2011) through December 31, 2011, the Fund recorded $4,998 in management fees to the Sponsor and waived, at the election of the Sponsor, approximately $1,200 in management fees.. The Fund generally pays for all brokerage fees, taxes and other expenses, including licensing fees for the use of intellectual property, registration or other fees paid to the SEC, the Financial Industry Regulatory Authority ("FINRA"), formerly the National Association of Securities Dealers, or any other regulatory agency in connection with the offer and sale of subsequent Shares after its initial registration and all legal, accounting, printing and other expenses associated therewith. The Fund also pays its portion of the fees and expenses associated with the Trust's tax accounting and reporting requirements. For an initial period, the Sponsor waived the payment by the Fund of certain expenses. This election was subject to change by the Sponsor, at its discretion. For the year ended December 31, 2012, this resulted in approximately $36,500 of the Fund's expenses being waived. For the year ended December 31, 2012, there were approximately $560,000 of expenses recorded on the financial statements of the Sponsor which are subject to reimbursement by the Funds in 2013. The Sponsor has not yet determined if it will seek such reimbursement and, as such, due to the uncertainty of this reimbursement, the financial statements of the Fund do not reflect an adjustment for this amount. Certain aggregate expenses common to all Funds managed by the Sponsor are allocated to each Fund based on activity drivers deemed most appropriate by the Sponsor for such expenses. All asset-based fees and expenses are calculated on the prior day's net assets. For the period from the commencement of operations (September 19, 2011) to December 31, 2011, the Sponsor paid approximately $25,000 in expenses on behalf of the Fund. Effective January 1, 2013, the Sponsor has reduced the expense accruals for the Fund to reflect the impact of operational efficiencies undertaken by the Sponsor and the impact of renegotiated contracts. The specific changes to the daily expense accruals, excluding any accruals for the management fee, from December 31, 2012 levels to January 1, 2013 levels for the Fund was from $677 per day reduced to $502 per day. The structure of the Fund and the nature of the expenses are such that as total net assets grow, there is a scalability of expenses that may allow the total expense ratio to be reduced. However, if total net assets for the Fund fall, the total expense ratio of the Fund will increase unless additional reductions are made by the Sponsor to the daily expense accrual. The Sponsor can elect to adjust the daily expense accruals at its discretion.
Use of Estimates | Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of the revenue and expenses during the reporting period. Actual results could differ from those estimates.
Fair Value - Definition and Hierarchy | Fair Value - Definition and Hierarchy In accordance with U.S. GAAP, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the "exit price") in an orderly transaction between market participants at the measurement date. In determining fair value, the Fund uses various valuation approaches. In accordance with U.S. GAAP, a fair value hierarchy for inputs is used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are those that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Fund. Unobservable inputs reflect the Fund's assumptions about the inputs market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. The fair value hierarchy is categorized into three levels based on the inputs as follows: Level 1 - Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Fund has the ability to access. Valuation adjustments and block discounts are not applied to Level 1 securities. Since valuations are based on quoted prices that are readily and regularly available in an active market, valuation of these securities does not entail a significant degree of judgment. Level 2 - Valuations based on quoted prices in markets that are not active or for which all significant inputs are observable, either directly or indirectly. Level 3 - Valuations based on inputs that are unobservable and significant to the overall fair value measurement. The availability of valuation techniques and observable inputs can vary from security to security and is affected by a wide variety of factors including, the type of security, whether the security is new and not yet established in the marketplace, and other characteristics particular to the transaction. To the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Those estimated values do not necessarily represent the amounts that may be ultimately realized due to the occurrence of future circumstances that cannot be reasonably determined. Because of the inherent uncertainty of valuation, those estimated values may be materially higher or lower than the values that would have been used had a ready market for the securities existed. Accordingly, the degree of judgment exercised by the Fund in determining fair value is greatest for securities categorized in Level 3. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the level in the fair value hierarchy, within which the fair value measurement in its entirety falls, is determined based on the lowest level input that is significant to the fair value measurement. Fair value is a market-based measure considered from the perspective of a market participant rather than an entity-specific measure. Therefore, even when market assumptions are not readily available, the Fund's own assumptions are set to reflect those that market participants would use in pricing the asset or liability at the measurement date. The Fund uses prices and inputs that are current as of the measurement date, including periods of market dislocation. In periods of market dislocation, the observability of prices and inputs may be reduced for many securities. This condition could cause a security to be reclassified to a lower level within the fair value hierarchy. When such a situation exists on a quarter close, the Sponsor will calculate the NAV on a particular day using the Level 1 valuation, but will later recalculate the NAV for the impacted Fund based upon the valuation inputs from these alternative verifiable sources (Level 2 or Level 3) and will report such NAV in its applicable financial statements and reports. On December 31, 2012 and December 31, 2011, in the opinion of the Trust and the Fund, the reported value of the Wheat Futures Contracts traded on the CBOT fairly reflected the value of the Wheat Futures Contracts held by the Fund, and no adjustments were necessary. The Fund records its derivative activities at fair value. Gains and losses from derivative contracts are included in the statements of operations. Derivative contracts include futures contracts related to commodity prices. Futures, which are listed on a national securities exchange, such as the CBOT or the NYMEX, or reported on another national market, are generally categorized in Level 1 of the fair value hierarchy. OTC derivatives contracts (such as forward and swap contracts) which may be valued using models, depending on whether significant inputs are observable or unobservable, are categorized in Levels 2 or 3 of the fair value hierarchy.
Net Income (Loss) per Share | Net Income (Loss) per Share Net income (loss) per share is the difference between the NAV per unit at the beginning of each period and at the end of each period. The weighted average number of units outstanding was computed for purposes of disclosing net income (loss) per weighted average unit. The weighted average units are equal to the number of units outstanding at the end of the period, adjusted proportionately for units created or redeemed based on the amount of time the units were outstanding during such period.
New Accounting Pronouncements | New Accounting Pronouncements In December 2011, the FASB issued ASU No. 2011-11, "Balance Sheet (Topic 210): Amendments of the FASB Accounting Standards Codification and Disclosures about Offsetting Assets and Liabilities in U.S. GAAP and IFRS." ASU No. 2011-11 clarifies existing requirements for balance sheet offsetting and for disclosures about the offsetting and related arrangements to enable users of its financial statements to understand the effect of those arrangements on its financial position in converged guidance of the FASB and the International Accounting Standards Board. The amendments are to be applied retrospectively for all comparative periods presented. For public entities, the amendments are effective for annual reporting periods beginning on or after January 1, 2013. We anticipate that the adoption will not have a significant impact on the financial statement disclosures for the Fund.

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- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 8, 9, 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Technical Practice Aid (TPA) -Number 2110 -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2122427 + Details
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- Definition Disclosure of accounting policy for fees earned by the broker dealer, acting as an agent in the buying and selling of securities and administrative efforts on behalf of customers and may include the timing of commission revenue recognition and presentation in the financial statements. Commissions earned are usually related to the broker dealer's customers' trading volume and the dollar amounts of the trades. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -URI http://asc.fasb.org/section&trid=2176260 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-BRD -Paragraph 52, 53 -IssueDate 2006-05-01 -Chapter 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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