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Condensed Schedule of Investments (Unaudited) (Parenthetical)	3 Months Ended
	Mar. 31, 2020 USD ($)
Collateral amount on open futures contracts	$ 39,356,627
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.70%, 4/02/2020
Interest rate	1.70%
Expiration date	4/02/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.64%, 4/09/2020
Interest rate	1.64%
Expiration date	4/09/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.60%, 4/16/2020
Interest rate	1.60%
Expiration date	4/16/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.60%, 4/23/2020
Interest rate	1.60%
Expiration date	4/23/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.59%, 4/30/2020
Interest rate	1.59%
Expiration date	4/30/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.54%, 5/07/2020
Interest rate	1.54%
Expiration date	5/07/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.55%, 5/14/2020
Interest rate	1.55%
Expiration date	5/14/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.55%, 5/21/2020
Interest rate	1.55%
Expiration date	5/21/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.58%, 5/28/2020
Interest rate	1.58%
Expiration date	5/28/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.53%, 6/04/2020
Interest rate	1.53%
Expiration date	6/04/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.53%, 6/11/2020
Interest rate	1.53%
Expiration date	6/11/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.54%, 6/18/2020
Interest rate	1.54%
Expiration date	6/18/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.57%, 6/25/2020
Interest rate	1.57%
Expiration date	6/25/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.54%, 7/02/2020
Interest rate	1.54%
Expiration date	7/02/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.51%, 7/09/2020
Interest rate	1.51%
Expiration date	7/09/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.54%, 7/16/2020
Interest rate	1.54%
Expiration date	7/16/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.53%, 7/23/2020
Interest rate	1.53%
Expiration date	7/23/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.53%, 7/30/2020
Interest rate	1.53%
Expiration date	7/30/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.53%, 8/06/2020
Interest rate	1.53%
Expiration date	8/06/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.52%, 8/13/2020
Interest rate	1.52%
Expiration date	8/13/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 1.52%, 8/20/2020
Interest rate	1.52%
Expiration date	8/20/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills,1.42%, 8/27/2020
Interest rate	1.42%
Expiration date	8/27/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 0.67%, 9/03/2020
Interest rate	0.67%
Expiration date	9/03/2020
Cash Equivalents [Member] | United States Treasury Obligations [Member] | U.S. Treasury Bills, 0.38%, 9/10/2020
Interest rate	0.38%
Expiration date	9/10/2020

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Amount of assets pledged to secure a debt instrument.

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