INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024
Deferred tax asset:
Net operating loss carryforwards	$ 168	$ 159
Interest	1,811	965
Total deferred tax asset	1,979	1,124
Deferred tax liabilities:
Net unrealized appreciation on investments	(11,106)	(11,395)
Net basis differences in portfolio investments	(3,463)	(1,726)
Total deferred tax liabilities	(14,569)	(13,121)
Total net deferred tax (liabilities) assets	$ (12,590)	$ (11,997)