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Investments (Tables) | 9 Months Ended
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Mar. 31, 2024
Investments [Abstract] |
Summary of Unrealized Positions for Held-to-Maturity Debt Securities |
| March 31, 2024
| Amortized cost basis |  | Gross unrealized gains |  | Gross unrealized losses |  | Fair Value
US Treasury securities | $ | 17,032,899 |  | $ | — |  | $ | (49,886) |  | $ | 16,983,013
Total | $ | 17,032,899 |  | $ | — |  | $ | (49,886) |  | $ | 16,983,013
| June 30, 2023
| Amortized cost basis |  | Gross unrealized gains |  | Gross unrealized losses |  | Fair Value
US Treasury securities | $ | 17,064,274 |  | $ | — |  | $ | (93,740) |  | $ | 16,970,534
Total | $ | 17,064,274 |  | $ | — |  | $ | (93,740) |  | $ | 16,970,534
Summary of Held-to-Maturity Debt Securities by Contractual Maturity |
| March 31, 2024
| Amortized Cost Basis |  | Fair value
Due within one year | $ | 7,020,288 |  | $ | 7,007,734
Due after one year through five years |  | 10,012,611 |  |  | 9,975,279
Total | $ | 17,032,899 |  | $ | 16,983,013
| June 30, 2023
| Amortized Cost Basis |  | Fair value
Due within one year | $ | 17,064,274 |  | $ | 16,970,534
Total | $ | 17,064,274 |  | $ | 16,970,534

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