CASH CASH EQUIVALENTS AND INVESTMENTS (Details) - USD ($) $ in Thousands	May 31, 2024	May 31, 2023
Total cash and cash equivalents	$ 49,159	$ 30,054
Short-term Investments	0	17,853
Cost [Member]
Cash	5,029	3,182
Total cash and cash equivalents	49,159	30,054
Total cash, cash equivalents and investments	49,309	48,074
Estimated Fair Value [Member]
Cash	5,029	3,182
Total cash and cash equivalents	49,159	30,054
Total cash, cash equivalents and investments	49,309	48,057
Gross Unrealized Loss
Cash	0	0
Total cash and cash equivalents	0	0
Total cash, cash equivalents and investments	0	17
Money Market Funds \| Cost [Member]
Cash equivalents	44,130	26,872
Long-term investments	150	150
Money Market Funds \| Estimated Fair Value [Member]
Cash equivalents	44,130	26,872
Long-term investments	150	150
Money Market Funds \| Gross Unrealized Loss
Cash equivalents	0	0
Long-term investments	$ 0	0
U S Treasury Securities [Member] \| Cost [Member]
Short-term Investments		17,870
U S Treasury Securities [Member] \| Estimated Fair Value [Member]
Short-term Investments		17,853
U S Treasury Securities [Member] \| Gross Unrealized Loss
Short-term Investments		$ 17

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