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Note 9 - Net Income Per Common Share (Details Textual) |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Jun. 28, 2019 | Jun. 03, 2019 | May 31, 2020 shares | May 31, 2019 shares | May 31, 2020 shares | May 31, 2019 shares
Stockholders' Equity Note, Stock Split, Conversion Ratio | 2 | 2 |  |  |  |
Share-based Payment Arrangement, Option [Member] |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) |  |  | 71,273 | 141,768 | 633,176 | 141,768

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770 + Details
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