Schedule of Investments (Unaudited) - Futures Contracts		12 Months Ended
		Dec. 31, 2020 USD ($) Contract	Jun. 30, 2021 USD ($) Contract
Schedule of Investments [Line Items]
Commodity Futures Contracts, Value		$ 141,030,393	$ 122,537,180
Futures [Member]
Schedule of Investments [Line Items]
Commodity Futures Contracts, Value	[1]	28,341,350	(7,351,216)
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	[1]	$ 28,341,350	$ (7,351,216)
Futures [Member] | COMEX Gold [Member] | Long [Member]
Schedule of Investments [Line Items]
Commodity Futures Contracts, Number of Contracts | Contract		589	538
Commodity Futures Contracts, Expiration Date		Feb. 28, 2021
Commodity Futures Contracts, Notional Value		$ 111,621,390	$ 95,640,260
Commodity Futures Contracts, Value	[1]	16,297,433	(6,332,685)
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	[1]	$ 16,297,433	$ (6,332,685)
Futures [Member] | COMEX Silver [Member] | Long [Member]
Schedule of Investments [Line Items]
Commodity Futures Contracts, Number of Contracts | Contract		229	211
Commodity Futures Contracts, Expiration Date		May 31, 2021
Commodity Futures Contracts, Notional Value		$ 30,311,585	$ 27,703,245
Commodity Futures Contracts, Value	[1]	12,043,917	(1,018,531)
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	[1]	$ 12,043,917	$ (1,018,531)

[1] Unrealized Appreciation (Depreciation) and Value are presented above, net by contract.