SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)		3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 18, 2011	Sep. 30, 2022 USD ($) investment	Sep. 30, 2021 USD ($) investment	Sep. 30, 2022 USD ($) investment	Sep. 30, 2021 USD ($) investment	Mar. 31, 2022 USD ($)
Accounting Policies [Abstract]
FDIC uninsured amount		$ 29,000,000		$ 29,000,000		$ 10,200,000
Concentration Risk [Line Items]
Non-cash interest income percent		3.60%	3.60%	3.70%	3.70%
Number of PIK investments | investment		2	2	2	2
Non-cash PIK interest income percent		5.20%	4.30%	4.20%	4.80%
Remaining lease term		10 years		10 years
Interest or penalties expense		$ 0	$ 0	$ 0	$ 0
Right to grant period	10 years
Qualifying assets		87.10%		87.10%
Percentage of Total Portfolio at Fair Value | Credit Concentration Risk | Investment Owned, Non-accrual Status
Concentration Risk [Line Items]
Percentage of Total Portfolio				0.90%		1.50%
Percentage of Total Portfolio				0.90%		1.50%
Percentage of Total Portfolio at Cost | Credit Concentration Risk | Investment Owned, Non-accrual Status
Concentration Risk [Line Items]
Percentage of Total Portfolio				2.30%		2.60%
Percentage of Total Portfolio				2.30%		2.60%