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Note 8 - Stockholders' Equity - Schedule of Dividends Payable (Details) - $ / shares |  |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 24, 2019 | Apr. 25, 2019 | Jan. 23, 2019 | Oct. 24, 2018 | Jul. 25, 2018 | Apr. 25, 2018 | Jan. 24, 2018 | Nov. 20, 2017 | Aug. 31, 2019 | Aug. 31, 2018
Amount (in dollars per share) | $ 0.06 | $ 0.06 | $ 0.06 | $ 0.06 | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.24 | $ 0.20
Record Date | Aug. 07, 2019 | May 09, 2019 | Feb. 06, 2019 | Nov. 07, 2018 | Aug. 08, 2018 | May 09, 2018 | Feb. 07, 2018 | Dec. 08, 2017 |  |
Payable Date | Aug. 21, 2019 | May 23, 2019 | Feb. 22, 2019 | Nov. 21, 2018 | Aug. 22, 2018 | May 23, 2018 | Feb. 21, 2018 | Dec. 21, 2017 |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
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- Definition Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. + References No definition available. + Details
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