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Equity Plans (Tables) | 12 Months Ended
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Aug. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Restricted Stock Awards Activity |
| Number of Shares | Weighted-Average Grant Date Fair Value Per Share
Outstanding as of September 1, 2022 | 23 |  | $ | 60.93 |
Granted | 17 |  | 55.99 |
Restrictions lapsed | (9) |  | 58.23 |
Canceled | (2) |  | 58.00 |
Outstanding as of August 31, 2023 | 29 |  | 59.11 |
For the year ended | 2023 | 2022 | 2021
Restricted stock award shares granted | 17 | 13 | 11
Weighted-average grant-date fair value per share | $ | 55.99 |  | $ | 70.81 |  | $ | 53.58 |
Aggregate vesting-date fair value of shares vested | $ | 514 |  | $ | 498 |  | $ | 385 |
Employee Stock Purchase Plan Valuation Assumptions |
For the year ended | 2023 | 2022 | 2021
Weighted-average grant-date fair value per share | $ | 17.06 |  | $ | 18.87 |  | $ | 20.71 |
Average expected life in years | 0.5 | 0.5 | 0.5
Weighted-average expected volatility (based on implied volatility) | 37 | % | 43 | % | 41 | %
Weighted-average risk-free interest rate | 5.1 | % | 2.0 | % | 0.1 | %
Expected dividend yield | 0.7 | % | 0.6 | % | 0.3 | %
Stock-based Compensation Expense |
For the year ended | 2023 | 2022 | 2021
Stock-based compensation expense by caption |  |  |
Research and development | $ | 226 |  | $ | 175 |  | $ | 110 |
Cost of goods sold | 201 |  | 193 |  | 186 |
Selling, general, and administrative | 137 |  | 133 |  | 99 |
Restructure | (7) |  | (5) |  | — |
| $ | 557 |  | $ | 496 |  | $ | 395 |
Stock-based compensation expense by type of award |  |  |
Restricted stock awards | $ | 488 |  | $ | 429 |  | $ | 333 |
ESPP | 69 |  | 66 |  | 52 |
Stock options | — |  | 1 |  | 10 |
| $ | 557 |  | $ | 496 |  | $ | 395 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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