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Investments
9 Months Ended
Mar. 31, 2023
Investments  
Investments 2.    INVESTMENTS

The following table summarizes the unrealized positions for the held-to-maturity debt securities as of March 31, 2023:

Amortized cost basis

Gross unrealized gains

Gross unrealized losses

Fair Value

US treasury securities

$

16,994,990

$

$

18,864

$

16,976,126

Total

$

16,994,990

$

$

18,864

$

16,976,126

The following table summarizes the fair value and amortized cost basis of the held-to-maturity debt securities by contractual maturity as of March 31, 2023:

Amortized Cost Basis

Fair value

Due within one year

$

12,045,520

$

12,032,385

Due after one year through five years

4,949,470

4,943,741

Total

$

16,994,990

$

16,976,126