SIGNIFICANT CUSTOMERS (Details) - Customer
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3 Months Ended |
9 Months Ended |
12 Months Ended |
May 31, 2019 |
May 31, 2018 |
May 31, 2019 |
May 31, 2018 |
Aug. 31, 2018 |
| Revenue [Member] | Land Development [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
100.00%
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100.00%
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| Number of customers |
3
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3
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| Revenue [Member] | Oil and Gas Leases [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Number of customers |
1
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1
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2
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3
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| Revenue [Member] | Customer One [Member] | Water and Wastewater Services [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
93.00%
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87.00%
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67.00%
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71.00%
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| Revenue [Member] | Customer One [Member] | Land Development [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
65.00%
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45.00%
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| Revenue [Member] | Customer Two [Member] | Water and Wastewater Services [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
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25.00%
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12.00%
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| Revenue [Member] | Customer Two [Member] | Land Development [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
25.00%
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34.00%
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| Revenue [Member] | Customer Three [Member] | Water and Wastewater Services [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
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10.00%
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| Revenue [Member] | Customer Three [Member] | Land Development [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
10.00%
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21.00%
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| Accounts Receivable [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Number of customers |
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2
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| Accounts Receivable [Member] | Rangeview District [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
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78.00%
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3.00%
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| Accounts Receivable [Member] | Rangeview District [Member] | Water and Wastewater Services [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
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6.00%
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| Accounts Receivable [Member] | Rangeview District [Member] | Water Tap Fees Recognized [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
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94.00%
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| Accounts Receivable [Member] | Customer One [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
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43.00%
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| Accounts Receivable [Member] | Customer Two [Member] |
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| Concentration Risk Percentage [Abstract] |
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| Concentration risk percentage |
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30.00%
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