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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Revenue Recognition (Details) gal in Millions | 12 Months Ended |
--- | --- | ---
Aug. 31, 2021 USD ($) a item segment gal | Aug. 31, 2020 USD ($) item gal | Aug. 31, 2019 USD ($)
Revenue Recognition [Abstract] |  |  |
Number of business lines | segment | 2 |  |
Total revenues | $ | $ 17,125,000 | $ 25,855,000 |
Land [Abstract] |  |  |
Deferred revenue | $ | $ 2,405,000 | 3,600,000 | $ 5,059,000
Area of land (in acres) | a | 930 |  |
Number of formats used for selling finished lots to home builders | 2 |  |
Gain from reimbursement of construction costs | $ | $ 485,000 | $ 6,276,000 |
Metered Water Usage [Member] |  |  |
Revenue Recognition [Abstract] |  |  |
Water delivered to customers | gal | 257.8 | 76.2 |
Percentage of water used for oil and gas exploration | 60.00% | 1.00% |
Water Tap Fees [Member] |  |  |
Revenue Recognition [Abstract] |  |  |
Total revenues | $ | $ 4,400,000 | $ 4,800,000 |
Wastewater Tap Fees [Member] |  |  |
Revenue Recognition [Abstract] |  |  |
Total revenues | $ | 800,000 | 900,000 |
Special Facility Funding Recognized [Member] |  |  |
Revenue Recognition [Abstract] |  |  |
Total revenues | $ | 400,000 | 0 |
Water Tap and Construction Fee [Member] |  |  |
Land [Abstract] |  |  |
Deferred revenue | $ | 0 | 0 |
Consulting Fees [Member] |  |  |
Revenue Recognition [Abstract] |  |  |
Total revenues | $ | 100,000 | 100,000 |
Lot Sales [Member] |  |  |
Revenue Recognition [Abstract] |  |  |
Total revenues | $ | 5,163,000 | 5,641,000 |
Lot Sales - Agreement with Purchaser [Member] |  |  |
Revenue Recognition [Abstract] |  |  |
Total revenues | $ | $ 1,600,000 | $ 4,900,000 |
Land [Abstract] |  |  |
Number of finished lots sold | 22 | 70 |
Lot Sales - Agreement with Purchaser [Member] | Homebuilder [Member] |  |  |
Land [Abstract] |  |  |
Number of Customers | 1 |  |
Lot Sales - Agreement with Builder [Member] |  |  |
Revenue Recognition [Abstract] |  |  |
Total revenues | $ | $ 4,200,000 | $ 14,000,000.0 |
Lot Sales - Agreement with Builder [Member] | Maximum [Member] |  |  |
Land [Abstract] |  |  |
Expected delivery period for lots sold | 1 year |  |
Phase 1 Development |  |  |
Land [Abstract] |  |  |
Proceeds from sale of lots | $ | $ 26,200,000 |  |
Number of lots | 509 |  |
Number of finished lots sold | 505 |  |
Number of platted lots sold | 356 |  |
Cumulative revenue recognized | $ | $ 26,000,000.0 |  |
Phase 1 Development | Sky Ranch CAB [Member] |  |  |
Land [Abstract] |  |  |
Number of finished lots sold | 356 |  |
Phase 1 Development | Homebuilder [Member] |  |  |
Land [Abstract] |  |  |
Number of Customers | 2 |  |
Phase 1 Development | Homebuilder [Member] | Sky Ranch CAB [Member] |  |  |
Land [Abstract] |  |  |
Number of Customers | 3 |  |
Phase 2 Development |  |  |
Land [Abstract] |  |  |
Proceeds from sale of lots | $ | $ 3,900,000 |  |
Number of lots | 850 |  |
Number of finished lots sold | 152 |  |
Number of lots under contract with homebuilder | 804 |  |
Number of lots retained for use in build-to-rent business | 46 |  |
Number of subphases | 4 |  |
Cumulative revenue recognized | $ | $ 2,200,000 |  |
Phase 2 Development | Sky Ranch CAB [Member] |  |  |
Land [Abstract] |  |  |
Number of finished lots sold | 804 |  |
Phase 2 Development | Homebuilder [Member] |  |  |
Land [Abstract] |  |  |
Number of Customers | 3 |  |
First Subphase |  |  |
Land [Abstract] |  |  |
Number of lots under contract with homebuilder | 219 |  |
Number of lots retained for use in build-to-rent business | 10 |  |
Number of lots to be constructed in a subphase | 229 |  |
First Subphase | Sky Ranch CAB [Member] |  |  |
Land [Abstract] |  |  |
Number of finished lots sold | 152 |  |

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