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CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables) | 9 Months Ended
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Feb. 28, 2023
CASH, CASH EQUIVALENTS AND INVESTMENTS |
Cash, cash equivalents and investments by security type | The following table summarizes the Company’s cash, cash equivalents and investments by security type as of February 28, 2023 (in thousands):
|  | Cost |  |  | Gross Unrealized Loss |  |  | Estimated Fair Value |
Cash |  | $ | 1,479 |  |  | $ | - |  |  | $ | 1,479 |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  |  | 11,726 |  |  |  | - |  |  |  | 11,726 |
U.S. treasury securities |  |  | 3,983 |  |  |  | - |  |  |  | 3,983 |
Total cash equivalents |  |  | 15,709 |  |  |  | - |  |  |  | 15,709 |
Total cash and cash equivalents |  | $ | 17,188 |  |  | $ | - |  |  | $ | 17,188 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 25,599 |  |  | $ | (22 | ) |  | $ | 25,577 |
Long-term investments: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 150 |  |  |  | - |  |  | $ | 150 |
Total cash, cash equivalents and investments |  | $ | 42,937 |  |  | $ | (22 | ) |  | $ | 42,915 |

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