PORTFOLIO INVESTMENTS AND FAIR VALUE - Fair Values of Investments Disaggregated into Three Levels of Fair Value Hierarchy (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	$ 874,460,683	$ 844,733,638
Senior SecuredLoans-First Lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	774,789,320	735,555,508
Senior Secured Loans-Second Lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	21,957,500	45,304,300
Unsecured Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	5,956,280	4,823,898
Equity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	71,757,583	59,049,932
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	874,460,683	844,733,638
Significant Unobservable Inputs (Level 3) | Senior SecuredLoans-First Lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	774,789,320	735,555,508
Significant Unobservable Inputs (Level 3) | Senior Secured Loans-Second Lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	21,957,500	45,304,300
Significant Unobservable Inputs (Level 3) | Unsecured Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	5,956,280	4,823,898
Significant Unobservable Inputs (Level 3) | Equity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of investments	$ 71,757,583	$ 59,049,932