Income Taxes - Investments and Cash Equivalents for Federal Income tax (Details) - USD ($) |
Sep. 30, 2025 |
Mar. 31, 2025 |
|---|---|---|
| Investment, Tax Basis, Unrealized Gain (Loss) [Abstract] | ||
| Tax cost of investments and cash equivalents | $ 324,803,488 | $ 307,394,719 |
| Unrealized appreciation | 1,553,354 | 1,286,665 |
| Unrealized depreciation | (4,500,995) | (4,496,904) |
| Net unrealized appreciation (depreciation) from investments and cash equivalents | $ (2,947,641) | $ (3,210,239) |