RELATED PARTY TRANSACTIONS - Narrative (Details)	1 Months Ended								3 Months Ended		6 Months Ended		22 Months Ended
	Apr. 30, 2023 USD ($)	Mar. 31, 2023	Nov. 30, 2022 USD ($)	Oct. 31, 2022 USD ($)	Aug. 31, 2022 USD ($)	Feb. 28, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) loan	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 13, 2023	Dec. 31, 2022 USD ($)	Jul. 31, 2021 USD ($)
Related Party Transaction [Line Items]
Incentive fees earned									$ 2,400,000	$ 3,400,000	$ 5,200,000	$ 6,400,000
Additional principal funded											16,796,204	103,799,812
Principal repayment of loans											18,509,287	28,176,844
Sub. of Public Co. H
Related Party Transaction [Line Items]
Decrease in loan commitment	$ 6,000,000
Additional principal funded	9,000,000
Commitments									$ 84,000,000		$ 84,000,000		$ 84,000,000
Related Party
Related Party Transaction [Line Items]
Percentage of base management fees									0.375%		0.375%		0.375%
Percentage of aggregate amount of any outside fees									50.00%		50.00%		50.00%
Incentive fees earned									$ 2,389,958	$ 3,395,024	$ 5,225,136	$ 6,373,864
Amounts payable									4,600,000		4,600,000		$ 4,600,000		$ 5,700,000
Due to affiliate									19,418		19,418		19,418		18,146
Affiliated Entity
Related Party Transaction [Line Items]
Due to affiliate									19,400		$ 19,400		19,400		$ 18,100
Number of co-invested loans held | loan											4
Affiliated Entity | Private Co. I
Related Party Transaction [Line Items]
Portion of company sold														0.66666
Loan commitments									$ 3,500,000		$ 3,500,000		$ 3,500,000			$ 15,500,000
Affiliated Entity | Private Co. I | AFC Institutional Fund, LLC
Related Party Transaction [Line Items]
Percentage of loan held									33.33%		33.33%		33.33%
Affiliated Entity | Private Co. A
Related Party Transaction [Line Items]
Loan commitments								$ 20,000,000	$ 79,000,000		$ 79,000,000		$ 79,000,000
Increase in loan commitments			$ 7,100,000			$ 15,300,000	$ 20,000,000
Interest rate		13.00%
Principal repayment of loans									5,900,000
Affiliated Entity | Private Co. A | Flower Loan Holdco LLC
Related Party Transaction [Line Items]
Increase in loan commitments			1,400,000				2,500,000
Affiliated Entity | Private Co. A | The Company and third party lender
Related Party Transaction [Line Items]
Increase in loan commitments						16,300,000
Affiliated Entity | Private Co. A | Third party lender
Related Party Transaction [Line Items]
Increase in loan commitments			1,500,000			$ 1,000,000
Affiliated Entity | Private Co. A | The Company, Flower Loan Holdco LLC and third party lenders
Related Party Transaction [Line Items]
Increase in loan commitments			$ 10,000,000
Affiliated Entity | Private Co. A | Lenders including the Company
Related Party Transaction [Line Items]
Principal repayment of loans									8,300,000
Affiliated Entity | Sub. of Private Co. G
Related Party Transaction [Line Items]
Loan commitments									$ 73,500,000		$ 73,500,000		73,500,000
Increase in loan commitments					$ 8,100,000			43,400,000
Amount funded													$ 73,000,000
Affiliated Entity | Sub. of Private Co. G | The Company and A BDC Warehouse, LLC
Related Party Transaction [Line Items]
Increase in loan commitments								53,400,000
Affiliated Entity | Sub. of Private Co. G | A BDC Warehouse, LLC
Related Party Transaction [Line Items]
Increase in loan commitments								$ 10,000,000
Affiliated Entity | Sub. of Public Co. H
Related Party Transaction [Line Items]
Loan commitments							60,000,000
Increase in loan commitments				$ 30,000,000
Affiliated Entity | Sub. of Public Co. H | Third party lender
Related Party Transaction [Line Items]
Loan commitments							30,000,000
Increase in loan commitments				15,000,000
Affiliated Entity | Sub. of Public Co. H | The Company, Predecessor in Interest to AFC Institutional Fund LLC and third party lenders
Related Party Transaction [Line Items]
Loan commitments							100,000,000
Increase in loan commitments	$ 10,000,000			50,000,000
Affiliated Entity | Sub. of Public Co. H | Predecessor in Interest To AFC Institutional Fund LLC
Related Party Transaction [Line Items]
Loan commitments							$ 10,000,000
Increase in loan commitments				$ 5,000,000