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SIGNIFICANT ACCOUNTING POLICIES - Intellectual Property (Detail) - Intellectual property - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2022 | May 31, 2021 | May 31, 2022 | May 31, 2021 | Aug. 31, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Acquisition Value | $ 16,985 |  | $ 16,985 |  | $ 16,985
Accumulated Amortization | 7,585 |  | 7,585 |  | 6,516
Net Book Value | 9,400 |  | 9,400 |  | $ 10,469
Amortization of intangible assets | 354 | $ 358 | $ 1,100 | $ 1,100 |
Royalty Agreement buy out-Enslein Research |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Amortization Period |  |  | 10 years |  | 10 years
Acquisition Value | 75 |  | $ 75 |  | $ 75
Accumulated Amortization | 75 |  | 75 |  | 71
Net Book Value | 0 |  | $ 0 |  | $ 4
Termination/nonassertion agreement-TSRL Inc. |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Amortization Period |  |  | 10 years |  | 10 years
Acquisition Value | 6,000 |  | $ 6,000 |  | $ 6,000
Accumulated Amortization | 4,825 |  | 4,825 |  | 4,375
Net Book Value | 1,175 |  | $ 1,175 |  | $ 1,625
Developed technologies–DILIsym acquisition |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Amortization Period |  |  | 9 years |  | 9 years
Acquisition Value | 2,850 |  | $ 2,850 |  | $ 2,850
Accumulated Amortization | 1,583 |  | 1,583 |  | 1,346
Net Book Value | 1,267 |  | $ 1,267 |  | $ 1,504
Intellectual rights of Entelos Holding Corp. |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Amortization Period |  |  | 10 years |  | 10 years
Acquisition Value | 50 |  | $ 50 |  | $ 50
Accumulated Amortization | 19 |  | 19 |  | 15
Net Book Value | 31 |  | $ 31 |  | $ 35
Developed technologies–Lixoft acquisition |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Amortization Period |  |  | 16 years |  | 16 years
Acquisition Value | 8,010 |  | $ 8,010 |  | $ 8,010
Accumulated Amortization | 1,083 |  | 1,083 |  | 709
Net Book Value | $ 6,927 |  | $ 6,927 |  | $ 7,301

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