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Note 8 - Stockholders' Equity (Tables) | 12 Months Ended
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Aug. 31, 2020
Notes Tables |
Dividends Declared [Table Text Block] |
Declaration Date |  | Amount |  | Record Date |  | Payable Date
October 22, 2019 |  |  | $0.065 |  |  | November 6, 2019 |  | November 20, 2019
January 22, 2020 |  |  | $0.065 |  |  | February 5, 2020 |  | February 19, 2020
Declaration Date |  | Amount |  | Record Date |  | Payable Date
October 24, 2018 |  |  | $0.06 |  |  | November 7, 2018 |  | November 21, 2018
January 23, 2019 |  |  | $0.06 |  |  | February 6, 2019 |  | February 22, 2019
April 25, 2019 |  |  | $0.06 |  |  | May 9, 2019 |  | May 23, 2019
July 24, 2019 |  |  | $0.06 |  |  | August 7, 2019 |  | August 21, 2019

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