RELATED PARTY ARRANGEMENTS - Components of the incentive fees (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
RELATED PARTY ARRANGEMENTS
Investment income incentive fees incurred	$ 3,782,151	$ 3,043,470	$ 2,527,813
Capital gains incentive fees (reversed) incurred	(2,818,623)	2,867,131	(359,892)
Incentive fees (reversal) expense	963,528	5,910,601	$ 2,167,921
Investment income incentive fee currently payable	2,083,928	1,459,942
Investment income incentive fee deferred	380,480	289,188
Capital gains incentive fee deferred	569,528	3,388,151
Incentive fee payable	$ 3,033,936	$ 5,137,281