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FAIR VALUE MEASUREMENTS (Details) | Nov. 30, 2018 USD ($) Assets Liabilities | Aug. 31, 2018 USD ($) Assets Liabilities
--- | --- | ---
Information on assets and liabilities measured at fair value [Abstract] |  |
Held-to-maturity securities | $ 191,000 | $ 190,400
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Number of assets or liabilities [Abstract] |  |
Number of assets | Assets | 0 | 0
Number of liabilities | Liabilities | 0 | 0
Significant Other Observable Inputs (Level 2) |  |
Number of assets or liabilities [Abstract] |  |
Number of assets | Assets | 4 | 7
Significant Unobservable Inputs (Level 3) |  |
Number of assets or liabilities [Abstract] |  |
Number of liabilities | Liabilities | 1 | 1
Recurring [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Accumulated unrealized gains and (losses) | $ 78,200 | $ 66,400
Recurring [Member] | U.S. Treasury and Debt Securities [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Accumulated unrealized gains and (losses) | 78,200 | 66,400
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 0 | 0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury and Debt Securities [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 0 | 0
Recurring [Member] | Significant Other Observable Inputs (Level 2) |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 10,985,800 | 8,718,000
Recurring [Member] | Significant Other Observable Inputs (Level 2) | U.S. Treasury and Debt Securities [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 10,985,800 | 8,718,000
Recurring [Member] | Significant Unobservable Inputs (Level 3) |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 0 | 0
Recurring [Member] | Significant Unobservable Inputs (Level 3) | U.S. Treasury and Debt Securities [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 0 | 0
Recurring [Member] | Fair Value [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 10,985,800 | 8,718,000
Recurring [Member] | Fair Value [Member] | U.S. Treasury and Debt Securities [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 10,985,800 | 8,718,000
Recurring [Member] | Cost / Other Value [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | 10,907,600 | 8,644,900
Recurring [Member] | Cost / Other Value [Member] | U.S. Treasury and Debt Securities [Member] |  |
Information on assets and liabilities measured at fair value [Abstract] |  |
Available-for-sale securities | $ 10,907,600 | $ 8,644,900

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