v3.25.1
Additional Valuation Information - Summary of the Tiered Valuation Input Levels (Detail) - USD ($)
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
United States Treasury Obligations $ 49,659,065 $ 49,156,643
Money Market Mutual Fund 48,393,442 51,500,959
Total Investments in Securities 98,052,507 100,657,602
Commodity Futures Contracts, Unrealized Appreciation 512,064 2,345,072
Other Investments:    
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) (2,798,008) (5,864,184)
Total Other Investments (2,285,944) (3,519,112)
Total Investments 95,766,563 97,138,490
Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money Market Mutual Fund 48,393,442 51,500,959
Total Investments in Securities 48,393,442 51,500,959
Commodity Futures Contracts, Unrealized Appreciation 512,064 2,345,072
Other Investments:    
Commodity Futures Contracts, Unrealized Appreciation (Depreciation) (2,798,008) (5,864,184)
Total Other Investments (2,285,944) (3,519,112)
Total Investments 46,107,498 47,981,847
Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
United States Treasury Obligations 49,659,065 49,156,643
Total Investments in Securities 49,659,065 49,156,643
Other Investments:    
Total Investments $ 49,659,065 $ 49,156,643