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Stock-Based Compensation - Narrative (Detail) - USD ($) |  |  |  |  |  | 3 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 08, 2024 | Sep. 28, 2023 | Sep. 27, 2023 | Jul. 03, 2023 | Aug. 10, 2022 | Jul. 28, 2024 | Jul. 30, 2023 | Sep. 16, 2015
Performance Based Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation award, vested |  |  |  |  |  |  |  |  |  | 0 | 0 |
Share-based compensation expense |  |  |  |  |  |  |  |  |  |  | $ 0 |
Remaining unrecognized compensation expense |  |  |  |  |  |  |  |  |  | $ 44,000 |  |
Weighted average period over which unrecognized compensation expense is expected to be recognized |  |  |  |  |  |  |  |  |  | 2 years |  |
Fair value of units expected to vest |  |  |  |  |  |  |  |  |  | $ 46,000 |  |
Performance Based Restricted Stock Units [Member] | Senior Executives [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation award, granted |  | 24,597 | [1],[2] | 202,900 | [1],[2] |  |  | 146,048 | [1],[2] | 0 | 0 |
Price Per Share | [2] | $ 6.23 | [3] | $ 6.43 | [4] |  |  | $ 5.77 | [5] |  |  |
Performance Based Restricted Stock Units [Member] | Key Employees [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation award, granted |  |  |  |  |  |  |  |  |  | 0 | 0 |
Performance Based Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  |  |  | $ 6,000 |  |
Time-Based Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation award, vested |  |  |  |  |  |  |  |  |  | 30,835 | 0 |
Fair value |  |  |  |  |  |  |  |  |  | $ 157,000 |  |
Price per share |  |  |  |  |  |  |  |  |  | $ 5.1 |  |
Remaining unrecognized compensation expense |  |  |  |  |  |  |  |  |  | $ 638,000 |  |
Weighted average period over which unrecognized compensation expense is expected to be recognized |  |  |  |  |  |  |  |  |  | 1 year 7 months 6 days |  |
Fair value of units expected to vest |  |  |  |  |  |  |  |  |  | $ 1,400,000 |  |
Time-Based Restricted Stock Units [Member] | Outside Directors [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation award, granted | [6] |  |  | 59,928 |  |  |  |  |  |  |  |
Price Per Share | [6],[7] |  |  | $ 5.59 |  |  |  |  |  |  |  |
Time-Based Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  |  |  | $ 170,000 | $ 238,000 |
Common Stock Awards [Member] | Outside Directors [Member] | Immediate Vesting [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation award, granted |  |  |  |  |  |  | 16,616 |  |  |  |  |
Price Per Share |  |  |  |  |  |  | $ 5.04 |  |  |  |  |
Common Stock Awards [Member] | Selling, General and Administrative Expenses [Member] | Outside Directors [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  |  |  |  | $ 84,000 |
2015 Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock authorized for issuance |  |  |  |  |  |  |  |  |  |  |  | 1,200,000
Number of shares available for future equity based grants |  |  |  |  |  |  |  |  |  | 1,016,425 |  |
Amended and Restated Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock authorized for issuance additional |  |  |  |  |  | 960,000 |  |  |  |  |  |
[1] | Amounts represent the maximum number of common stock shares that could be earned if certain performance targets are met as defined in the related restricted stock unit agreements.
[2] | Performance-based restricted stock units awarded to senior executives.
[3] | Price per share represents the fair market value per share ($1.11 per $1, or an increase of $0.62 to the closing price of our common stock on the date of grant) determined using the Monte Carlo simulation model for the market-based total shareholder return component and the closing price of our common stock ($5.61) for the performance-based component of the performance-based restricted stock units granted to a senior executive on January 8, 2024.
[4] | Price per share represents the fair market value per share ($1.15 per $1, or an increase of $0.84 to the closing price of our common stock on the date of grant) determined using the Monte Carlo simulation model for the market-based total shareholder return component and the closing price of our common stock ($5.59) for the performance-based component of the performance-based restricted stock units granted to senior executives on September 28, 2023.
[5] | Price per share represents the fair market value per share ($1.14 per $1, or an increase of $0.71 to the closing price of our common stock on the date of grant) determined using the Monte Carlo simulation model for the market-based total shareholder return component and the closing price of our common stock ($5.59) for the performance-based component of the performance-based restricted stock units granted to senior executives on August 10, 2022.
[6] | Time-based restricted stock units award to outside directors.
[7] | Price per share represents closing price of common stock on the date the respective award was granted.

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