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Schedule of Investments (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Interest rate	0.005%
Expiration date	December 31, 2021	December 31, 2020
Collateral Amount On Open Futures Contracts	$ 30,014,301	$ 15,259,310
RBC U.S. Government Money Market Fund - Institutional Shares
Interest rate	0.03%
United States - Money Market Funds | Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares
Interest rate	0.03%
United States - Money Market Funds | Cash Equivalents | Fidelity Investments Money Market Funds - Government Portfolio [Member]
Interest rate		0.01%
United States - Money Market Funds | Cash Equivalents | Goldman Sachs Financial Square Government Fund - Institutional Shares
Interest rate	0.03%
United States - Money Market Funds | Cash Equivalents | RBC U.S. Government Money Market Fund - Institutional Shares
Interest rate		0.02%

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