v3.25.1
Investments in Affiliates - Summary of Transactions in, and Earnings from, Investments in Affiliates (Detail) - USD ($)
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Investments In And Advances To Affiliates [Line Items]    
Investment Owned, at Fair Value, Beginning Balance $ 46,368,670  
Change in Unrealized Appreciation (Depreciation) (21,417) $ (30,640)
Investment Owned, at Fair Value, Ending Balance 45,395,218  
Dividend Income 382,287 748,305
Affiliated Investments [Member]    
Investments In And Advances To Affiliates [Line Items]    
Investment Owned, at Fair Value, Beginning Balance 26,514,962 30,474,423
Purchases at Cost 36,931,117 57,078,207
Proceeds from Sales (18,050,861) (32,782,403)
Change in Unrealized Appreciation (Depreciation)   (12,852)
Investment Owned, at Fair Value, Ending Balance 45,395,218 54,757,375
Dividend Income 382,287 748,305
Affiliated Investments [Member] | Exchange Traded Funds [Member]    
Investments In And Advances To Affiliates [Line Items]    
Investment Owned, at Fair Value, Beginning Balance   10,053,596
Change in Unrealized Appreciation (Depreciation)   (12,852)
Investment Owned, at Fair Value, Ending Balance   10,040,744
Dividend Income   129,132
Affiliated Investments [Member] | Money Market Mutual Fund - Invesco Government & Agency Portfolio, Institutional Class [Member]    
Investments In And Advances To Affiliates [Line Items]    
Investment Owned, at Fair Value, Beginning Balance 26,514,962 20,420,827
Purchases at Cost 36,931,117 57,078,207
Proceeds from Sales (18,050,861) (32,782,403)
Investment Owned, at Fair Value, Ending Balance 45,395,218 44,716,631
Dividend Income $ 382,287 $ 619,173