| Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] |
| 5. |
MARKETABLE DEBT SECURITIES |
The following table summarizes our marketable securities and available-for-sale investments as of November 30, 2024 (in thousands):
| |
|
Cost |
|
|
Unrealized Gains |
|
|
Unrealized Losses |
|
|
Fair Value |
|
|
Investments |
|
| Corporate bonds |
|
$ |
2,950 |
|
|
$ |
18 |
|
|
$ |
- |
|
|
$ |
2,968 |
|
|
$ |
2,968 |
|
| U.S. Treasury securities |
|
|
5,906 |
|
|
|
47 |
|
|
|
- |
|
|
|
5,953 |
|
|
|
5,953 |
|
| Total |
|
$ |
8,856 |
|
|
$ |
65 |
|
|
$ |
- |
|
|
$ |
8,921 |
|
|
$ |
8,921 |
|
| |
|
November 30, 2024 |
|
| |
|
Cost |
|
|
Fair Value |
|
| Due within one year or less |
|
$ |
8,856 |
|
|
$ |
8,921 |
|
| |
|
|
|
|
|
|
|
|
|
November 30, 2024 |
|
| |
|
|
|
|
|
|
|
|
|
Fair Value Measurement Based on |
|
| |
|
|
|
|
|
|
|
|
Quoted Prices in Active Market |
|
|
Significant Other Observable Inputs |
|
|
Significant Unobservable Inputs |
|
| |
|
Cost |
|
|
Fair Value |
|
|
(Level 1) |
|
|
(Level 2) |
|
|
(Level 3) |
|
| Cash equivalents |
|
$ |
11,304 |
|
|
$ |
11,304 |
|
|
$ |
11,304 |
|
|
$ |
- |
|
|
$ |
- |
|
| Corporate bonds |
|
|
2,950 |
|
|
|
2,968 |
|
|
|
- |
|
|
|
2,968 |
|
|
|
- |
|
| U.S. Treasury securities |
|
|
5,906 |
|
|
|
5,953 |
|
|
|
- |
|
|
|
5,953 |
|
|
|
- |
|
| Total |
|
$ |
20,160 |
|
|
$ |
20,225 |
|
|
$ |
11,304 |
|
|
$ |
8,921 |
|
|
$ |
- |
|
| |
|
|
|
|
|
|
|
|
|
November 30, 2023 |
|
| |
|
|
|
|
|
|
|
|
|
Fair Value Measurement Based on |
|
| |
|
|
|
|
|
|
|
|
Quoted Prices in Active Market |
|
|
Significant Other Observable Inputs |
|
|
Significant Unobservable Inputs |
|
| |
|
Cost |
|
|
Fair Value |
|
|
(Level 1) |
|
|
(Level 2) |
|
|
(Level 3) |
|
| Cash equivalents |
|
$ |
16,324 |
|
|
$ |
16,324 |
|
|
$ |
16,324 |
|
|
$ |
- |
|
|
$ |
- |
|
| Corporate bonds |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
| U.S. Treasury securities |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
| Total |
|
$ |
16,324 |
|
|
$ |
16,324 |
|
|
$ |
16,324 |
|
|
$ |
- |
|
|
$ |
- |
|
|