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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands | May 31, 2024 | May 31, 2023
--- | --- | ---
Assets [Member] |  |
Investment securities | $ 44,280 | $ 44,875
US Treasury Securities |  |
Investment securities |  | 17,853
Money Market Funds |  |
Investment securities | 44,280 | 27,022
Level 2 [Member] | Assets [Member] |  |
Investment securities | 0 | 0
Level 2 [Member] | US Treasury Securities |  |
Investment securities |  | 0
Level 2 [Member] | Money Market Funds |  |
Investment securities | 0 | 0
Level 3 [Member] | Assets [Member] |  |
Investment securities | 0 | 0
Level 3 [Member] | US Treasury Securities |  |
Investment securities |  | 0
Level 3 [Member] | Money Market Funds |  |
Investment securities | 0 | 0
Level 1 [Member] | Assets [Member] |  |
Investment securities | 44,280 | 44,875
Level 1 [Member] | US Treasury Securities |  |
Investment securities |  | 17,853
Level 1 [Member] | Money Market Funds |  |
Investment securities | $ 44,280 | $ 27,022

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