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SIGNIFICANT CUSTOMERS (Details) - Customer | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2018 | May 31, 2017 | May 31, 2018 | May 31, 2017 | Aug. 31, 2017
Sales [Member] | Rangeview District [Member] |  |  |  |  |
Concentration Risk Percentage [Abstract] |  |  |  |  |
Concentration risk percentage | 9.00% | 75.00% | 5.00% | 33.00% |
Revenue [Member] | Ridgeview Youth Services Center [Member] |  |  |  |  |
Concentration Risk Percentage [Abstract] |  |  |  |  |
Concentration risk percentage | 4.00% | 59.00% | 4.00% | 26.00% |
Number of customers | 1 | 1 | 1 | 1 |
Revenue [Member] | Oil and Gas Industry [Member] |  |  |  |  |
Concentration Risk Percentage [Abstract] |  |  |  |  |
Concentration risk percentage | 87.00% | 91.00% | 0.00% | 55.00% |
Number of customers | 1 | 3 | 1 | 1 |
Accounts Receivable [Member] | Rangeview District [Member] |  |  |  |  |
Concentration Risk Percentage [Abstract] |  |  |  |  |
Concentration risk percentage |  |  | 26.00% |  | 50.00%
Accounts Receivable [Member] | Ridgeview Youth Services Center [Member] |  |  |  |  |
Concentration Risk Percentage [Abstract] |  |  |  |  |
Concentration risk percentage |  |  | 55.00% |  | 46.00%
Number of customers |  |  | 1 |  | 1
Accounts Receivable [Member] | Largest Customer [Member] |  |  |  |  |
Concentration Risk Percentage [Abstract] |  |  |  |  |
Concentration risk percentage |  |  | 15.00% |  | 19.00%

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