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Stock-Based Compensation (Overview) (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 25, 2024 | Jan. 31, 2025 | Jan. 31, 2024 | Jan. 31, 2025 | Jan. 31, 2024 | Jan. 10, 2025 | Oct. 31, 2024 | Jul. 31, 2024 | Dec. 31, 2023
2001 Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |
Estimated forfeitures related to unvested stock-based awards |  | $ 548,000 |  | $ 548,000 |  |  |  |  |
Weighted average number of years net compensation cost is expected to be recognized over |  |  |  | 2 years |  |  |  |  |
Stock-based compensation capitalized and included in ending inventory |  | 198,000 |  | $ 198,000 |  |  |  | $ 198,000 |
Forfeitures related to total unrecognized stock based compensation authorization pending |  |  |  |  |  | $ 2,000,000 |  |  |
Income tax (expense) benefit from settlement of stock-based awards |  | $ (95,000) | $ 141,000 | $ (120,000) | $ (303,000) |  |  |  |
Stock options |  |  |  |  |  |  |  |  |
Stock-Based Awards Outstanding By Award Type (In Shares) |  |  |  |  |  |  |  |  |
Number of stock-based awards outstanding at period end (in shares) |  | 135,690 |  | 135,690 |  |  | 141,190 | 141,190 |
2000 Stock Incentive Plan |  |  |  |  |  |  |  |  |
2000 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Aggregate maximum number of shares of common stock which may be issued under stock option plan (in shares) |  | 15,757,500 |  | 15,757,500 |  |  |  |  |
Aggregate net number of stock-based awards granted (in shares) |  | 12,335,109 |  | 12,335,109 |  |  |  |  |
Aggregate number of stock based awards expired and canceled (in shares) |  | 7,456,768 |  | 7,456,768 |  |  |  |  |
Aggregate number of stock-based awards exercised (in shares) |  | 10,310,028 |  | 10,310,028 |  |  |  |  |
Stock-Based Awards Outstanding By Award Type (In Shares) |  |  |  |  |  |  |  |  |
Number of total stock-based awards outstanding (in shares) |  | 2,025,081 |  | 2,025,081 |  |  |  |  |
2000 Stock Incentive Plan | Stock options |  |  |  |  |  |  |  |  |
2000 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Maximum term for grants of incentive and non-qualified stock-based awards, excluding incentive stock-based awards granted to stockholders who own more than 10% of the voting power |  |  |  | 10 years |  |  |  |  |
Percentage of a stockholder's voting power that limits the contractual term of an incentive stock-based award |  | 10.00% |  | 10.00% |  |  |  |  |
Maximum term for incentive stock-based awards granted to stockholders who own more than 10% of the voting power |  |  |  | 5 years |  |  |  |  |
Stock-Based Awards Outstanding By Award Type (In Shares) |  |  |  |  |  |  |  |  |
Number of stock-based awards outstanding at period end (in shares) |  | 135,690 |  | 135,690 |  |  |  |  |
2000 Stock Incentive Plan | Performance shares |  |  |  |  |  |  |  |  |
Stock-Based Awards Outstanding By Award Type (In Shares) |  |  |  |  |  |  |  |  |
Number of stock-based awards outstanding at period end (in shares) |  | 668,103 |  | 668,103 |  |  |  |  |
2000 Stock Incentive Plan | RSUs and restricted stock |  |  |  |  |  |  |  |  |
Stock-Based Awards Outstanding By Award Type (In Shares) |  |  |  |  |  |  |  |  |
Number of stock-based awards outstanding at period end (in shares) |  | 1,221,288 |  | 1,221,288 |  |  |  |  |
2000 Stock Incentive Plan | Stock Appreciation Rights (SARs) |  |  |  |  |  |  |  |  |
Stock-Based Awards Outstanding By Award Type (In Shares) |  |  |  |  |  |  |  |  |
Number of stock-based awards outstanding at period end (in shares) |  | 0 |  | 0 |  |  |  | 0 |
2001 Employee Stock Purchase Plan | ESPP |  |  |  |  |  |  |  |  |
2001 Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |
Total number of common shares reserved for issuance under employee stock purchase plan (in shares) |  | 1,300,000 |  | 1,300,000 |  |  |  |  |
Discount rate from market value, on purchase date, offered to employees participating in the Employee Stock Purchase Plan (ESPP) |  | 85.00% |  | 85.00% |  |  |  |  |
Total number of shares of common stock issued to employees under employee stock purchase plan and through the end of the reporting period (in shares) |  | 1,078,696 |  | 1,078,696 |  |  |  |  |
2023 Equity and Incentive Plan |  |  |  |  |  |  |  |  |
2000 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Aggregate maximum number of shares of common stock which may be issued under stock option plan (in shares) |  |  |  |  |  |  |  |  | 1,669,683
Number of additional shares reserved for issuance (in shares) | 2,195,000 |  |  |  |  |  |  |  |

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