INCOME TAXES - Deferred Tax Assets And Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
Deferred tax asset:
Net operating loss carryforwards	$ 0	$ 0
Interest	210	185
Total deferred tax asset	210	185
Deferred tax liabilities:
Net unrealized appreciation on investments	(7,475)	(4,899)
Net basis differences in portfolio investments	(1,533)	(1,033)
Total deferred tax liabilities	(9,008)	(5,932)
Total net deferred tax (liabilities) assets	$ (8,798)	$ (5,747)