Schedule of Investments - Futures Contracts	12 Months Ended
	Dec. 31, 2021 USD ($) Contract		Dec. 31, 2020 USD ($) Contract
Schedule of Investments [Line Items]
Commodity Futures Contracts, Value	$ 18,944,414		$ 25,837,966
Long [Member] | Futures [Member] | CME SWAPS MARKETS (COMEX) Silver [Member]
Schedule of Investments [Line Items]
Commodity Futures Contracts, Number of Contracts | Contract	166		197
Commodity Futures Contracts, Expiration Date	Mar. 31, 2022		May 31, 2021
Commodity Futures Contracts, Notional Value	$ 19,382,160		$ 26,075,905
Commodity Futures Contracts, Value	786,770	[1]	7,522,894	[2]
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	$ 786,770	[1]	$ 7,522,894	[2]

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

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