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INCOME TAXES - Book and Tax Basis Differences Relating to Dividends and Distributions (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Additional capital |  |
Investment Company, Summary Of Dividends And Distributions, Tax Differences [Line Items] |  |
Total distributable earnings | $ (6,420) | $ (7,648)
Total distributable earnings |  |
Investment Company, Summary Of Dividends And Distributions, Tax Differences [Line Items] |  |
Total distributable earnings | $ 6,420 | $ 7,648

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