| Investments Classified by Contractual Maturity Date [Table Text Block] |
| As of June 30, 2023 |
|
Cost Basis |
|
|
Unrealized Gains |
|
|
Aggregate Fair Value |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Bills |
|
$ |
4,936,367 |
|
|
$ |
28,503 |
|
|
$ |
4,964,870 |
|
| Money Market Accounts |
|
|
4,145,707 |
|
|
|
— |
|
|
|
4,145,707 |
|
| Total |
|
$ |
9,082,074 |
|
|
$ |
28,503 |
|
|
$ |
9,110,577 |
|
| As of December 31, 2022 |
|
Cost Basis |
|
|
Unrealized Gains |
|
|
Aggregate Fair Value |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| U.S. Treasury Bills |
|
$ |
6,905,171 |
|
|
$ |
15,039 |
|
|
$ |
6,920,210 |
|
| Money Market Accounts |
|
|
5,262,286 |
|
|
|
— |
|
|
|
5,262,286 |
|
| Total |
|
$ |
12,167,457 |
|
|
$ |
15,039 |
|
|
$ |
12,182,496 |
|
|