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REVENUE - Deferred Revenue by Segment (Details) - USD ($) $ in Thousands | Nov. 30, 2021 | Aug. 31, 2021 | Aug. 31, 2020
--- | --- | --- | ---
Deferred Revenue [Abstract] |  |  |
Deferred revenue | $ 3,102 | $ 2,405 | $ 3,600
Land Development Segment [Member] |  |  |
Deferred Revenue [Abstract] |  |  |
Deferred revenue | 2,831 | 1,995 |
Water and Wastewater Resource Development Segment [Member] |  |  |
Deferred Revenue [Abstract] |  |  |
Deferred revenue | $ 271 | $ 410 |

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