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Note 17 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value Recurring Basis (Details) - USD ($) | Aug. 31, 2019 | Aug. 31, 2018
--- | --- | ---
Available for sale securities | $ 3,565,258 | $ 3,300,110
Fair Value, Inputs, Level 1 [Member] |  |
Available for sale securities | 3,565,258 | 3,300,110
Fair Value, Inputs, Level 2 [Member] |  |
Available for sale securities |  |
Fair Value, Inputs, Level 3 [Member] |  |
Available for sale securities |  |

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

X
- Details
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Namespace Prefix: |
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- Details
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Data Type: | na
Balance Type: |
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- Details
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