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Note 10 - Stockholders' Equity (Tables) | 12 Months Ended
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Aug. 31, 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
April 21, 2023 |  | $0.07 |  | May 3, 2023 |  | May 17, 2023
July 17, 2023 |  | $0.07 |  | August 2, 2023 |  | August 16, 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
April 22, 2022 |  | $0.07 |  | May 4, 2022 |  | May 18, 2022
July 20, 2022 |  | $0.07 |  | August 3, 2022 |  | August 17, 2022

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- Definition Tabular disclosure of information related to dividends declared, including paid and unpaid dividends. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration