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Note 8 - Stockholders' Equity (Tables) | 6 Months Ended
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Feb. 28, 2023
Notes Tables |
Dividends Declared [Table Text Block] |
Declaration Date |  | Amount |  | Record Date |  | Payable Date
October 20, 2022 |  | $0.07 |  | November 3, 2022 |  | November 16, 2022
January 20, 2023 |  | $0.07 |  | February 1, 2023 |  | February 15, 2023
Declaration Date |  | Amount |  | Record Date |  | Payable Date
October 20, 2021 |  | $0.07 |  | November 3, 2021 |  | November 17, 2021
January 21, 2022 |  | $0.07 |  | February 2, 2022 |  | February 16, 2022

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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