INCOME TAXES - Deferred Tax Assets And Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Mar. 31, 2022
Deferred tax asset:
Net operating loss carryforwards	$ 0	$ 0
Interest	220	185
Total deferred tax asset	220	185
Deferred tax liabilities:
Net unrealized appreciation on investments	(10,911)	(4,899)
Net basis differences in portfolio investments	(736)	(1,033)
Total deferred tax liabilities	(11,647)	(5,932)
Total net deferred tax (liabilities) assets	$ (11,427)	$ (5,747)