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FINANCIAL HIGHLIGHTS (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2023
Investment Company, Financial Highlights [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net asset value at beginning of period (in USD per share) | $ 14.03 |  |  |  | $ 13.09 |  | $ 13.31 |  |  |  | $ 13.43 |  | $ 13.09 | $ 13.43 |
Income from investment operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net investment income (in USD per share) | 0.28 |  |  |  |  |  | 0.26 |  |  |  |  |  | 0.49 | 0.82 |
Net realized gain (in USD per share) | 1.27 |  |  |  |  |  | 0.11 |  |  |  |  |  | 1.32 | 0.32 |
Net unrealized (depreciation) appreciation (in USD per share) | (1.36) |  |  |  |  |  | 0.10 |  |  |  |  |  | 0.04 | (0.21) |
Total from investment operations (in USD per share) | 0.19 |  |  |  |  |  | 0.47 |  |  |  |  |  | 1.85 | 0.93 |
Effect of equity capital activity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash distributions to common stockholders from net investment income (in USD per share) | (0.43) | [1] | $ (0.20) | [1] | (0.21) | [1] | (0.22) | [1] | $ (0.14) | [1] | (0.10) | [1] | (0.84) | (0.46) |
Cash distributions to common stockholders from net realized gains (in USD per share) | (0.81) | [1] | (0.16) | [1] | (0.15) | [1] | (0.14) | [1] | (0.08) | [1] | (0.25) | [1] | (1.12) | (0.47) |
Discounts, commissions and offering costs (in USD per share) | (0.01) |  |  |  |  |  | 0 |  |  |  |  |  | (0.01) | 0 |
Net accretive effective of equity offering (in USD per share) | 0.05 |  |  |  |  |  | 0.01 |  |  |  |  |  | 0.05 | 0.01 |
Total from equity capital activity (in USD per share) | (1.20) |  |  |  |  |  | (0.35) |  |  |  |  |  | (1.92) | (0.92) |
Other, net (in USD per share) | (0.01) |  |  |  |  |  | 0 |  |  |  |  |  | (0.01) | (0.01) |
Net asset value at end of period (in USD per share) | 13.01 |  | 14.03 |  |  |  | 13.43 |  | 13.31 |  |  |  | 13.01 | 13.43 |
Per common share market value at beginning of period (in USD per share) | 12.74 |  |  |  | $ 13.25 |  | 12.10 |  |  |  | $ 16.13 |  | 13.25 | 16.13 |
Per common share market value at end of period (in USD per share) | $ 14.15 |  | $ 12.74 |  |  |  | $ 12.91 |  | $ 12.10 |  |  |  | $ 14.15 | $ 12.91 |
Total investment return | 20.85% |  |  |  |  |  | 9.63% |  |  |  |  |  | 22.72% | (14.36%) |
Common stock outstanding at end of period (in shares) | 35,351,954 |  |  |  |  |  | 33,447,001 |  |  |  |  |  | 35,351,954 | 33,447,001 | 33,591,505
Statement of Assets and Liabilities Data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net assets at end of period | $ 459,941 |  |  |  |  |  | $ 449,191 |  |  |  |  |  | $ 459,941 | $ 449,191 |
Average net assets | 475,007 |  |  |  |  |  | 445,431 |  |  |  |  |  | 455,627 | 446,742 |
Senior Securities Data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total borrowings, at cost | $ 419,838 |  |  |  |  |  | $ 292,088 |  |  |  |  |  | $ 419,838 | $ 292,088 |
Ratios/Supplemental Data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ratio of net expenses to average net assets – annualized | 11.23% |  |  |  |  |  | 11.70% |  |  |  |  |  | 13.78% | 10.22% |
Ratio of net investment (loss) income to average net assets – annualized | 8.21% |  |  |  |  |  | 7.70% |  |  |  |  |  | 4.80% | 8.14% |
Ratio of expenses to average net assets - annualized | 14.70% |  |  |  |  |  | 14.24% |  |  |  |  |  | 17.27% | 12.87% |
Ratio of net investment income (loss) to average net assets – annualized | 4.73% |  |  |  |  |  | 5.15% |  |  |  |  |  | 1.32% | 5.50% |
[1] | Refer to Note 8 — Distributions to Common Stockholders in the accompanying Notes to Consolidated Financial Statements for additional information.

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