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Investments | 6 Months Ended
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Dec. 31, 2023
Investments [Abstract] |
Investments | 2. INVESTMENTS The following tables summarize the unrealized positions for the held-to-maturity debt securities as of December 31, 2023 and June 30, 2023:
| December 31, 2023
| Amortized cost basis |  | Gross unrealized gains |  | Gross unrealized losses |  | Fair Value
US Treasury securities | $ | 17,072,657 |  | $ | — |  | $ | (12,757) |  | $ | 17,059,900
Total | $ | 17,072,657 |  | $ | — |  | $ | (12,757) |  | $ | 17,059,900
| 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
The following tables summarize the fair value and amortized cost basis of the held-to-maturity debt securities by contractual maturity as of December 31, 2023 and June 30, 2023:
| December 30, 2023
| Amortized Cost Basis |  | Fair value
Due within one year | $ | 12,071,737 |  | $ | 12,052,010
Due after one year through five years |  | 5,000,920 |  |  | 5,007,890
Total | $ | 17,072,657 |  | $ | 17,059,900
| 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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