Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED SCHEDULE OF PORTFOLIO INVESTMENTS (Unaudited) (Parenthetical)

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CONSOLIDATED SCHEDULE OF PORTFOLIO INVESTMENTS (Unaudited) (Parenthetical) - USD ($)
 9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Schedule of Investments [Line Items]    
Percentage of fair value level 3 investments 90.00% 90.00%
Investment at Cost $ 66,261,908 $ 55,716,237
Interest due from investments $ 50,000 $ 50,000
Blocker corporation    
Schedule of Investments [Line Items]    
Equity owned percentage 100.00% 100.00%
Fair Value    
Schedule of Investments [Line Items]    
Investment at Cost $ 66,300,000 $ 55,700,000
Net unrealized appreciation 8,400,000 5,800,000
Unrealized appreciation of investment securities 13,400,000 13,500,000
Unrealized depreciation of investment securities 5,000,000 7,700,000
Aggregate gross unrealized gain for federal income tax 13,800,000 13,200,000
Aggregate gross unrealized loss for federal income tax 4,700,000 6,700,000
Net unrealized gain for federal income tax 9,100,000 6,500,000
Tax cost $ 65,500,000 $ 55,000,000
Minimum    
Schedule of Investments [Line Items]    
Percentage of voting securities 5.00% 5.00%
Percentage of board representation 50.00% 50.00%
Maximum    
Schedule of Investments [Line Items]    
Percentage of voting securities 25.00% 25.00%