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ACQUISITIONS - Total allocable purchase price (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Business Acquisition [Line Items] |  |  |  |
Cash consideration |  |  | $ 1,000 |
Cash |  |  |  | $ 3,450
Ventana Research |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash consideration | $ 1,000 |  |  |
Contingent consideration | 1,657 |  | $ 1,657 |
Total allocable purchase price | $ 2,657 |  |  |
Change 4 Growth |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash consideration |  | $ 3,800 |  |
Cash |  | 3,450 |  |
Accrued working capital adjustment |  | 378 |  |
ISG common stock |  | 600 |  |
Contingent consideration |  | 5,560 |  | $ 5,560
Total allocable purchase price |  | $ 9,988 |  |

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