SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)			3 Months Ended		12 Months Ended
	Jul. 18, 2021	Jul. 18, 2011	Jun. 30, 2023 USD ($) investment	Jun. 30, 2022 USD ($) investment	Mar. 31, 2023 USD ($)
Accounting Policies [Abstract]
FDIC Insured amount			$ 7,700,000		$ 8,900,000
FDIC uninsured amount			$ 20,000,000		$ 20,300,000
Concentration Risk [Line Items]
Non-cash interest income percent			2.90%	3.80%
Number of PIK investments | investment			3	3
Non-cash PIK interest income percent			4.10%	3.00%
Remaining lease term			9 years 3 months 18 days
Interest or penalties expense			$ 0	$ 0
Restricted Stock | 2010 Plan
Concentration Risk [Line Items]
Right to grant period	10 years	10 years
Right to grant period	10 years	10 years
Percentage of Total Portfolio at Fair Value | Credit risk | Investment Owned, Non-accrual Status
Concentration Risk [Line Items]
Percent of total investment portfolio's fair value			1.70%		0.30%
Percentage of Total Portfolio at Cost | Credit risk | Investment Owned, Non-accrual Status
Concentration Risk [Line Items]
Percent of total investment portfolio's fair value			2.50%		1.30%