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Shareholders' Equity and Share-Based Compensation (Tables) | 12 Months Ended
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Apr. 29, 2023
Equity [Abstract] |
Schedule of Nonvested Restricted Stock and Restricted Stock Units Activity | A summary of non-vested restricted stock and restricted stock units for fiscal years 2023, 2022, and 2021 is as follows:
| Year Ended
| April 29, 2023 |  | April 30, 2022 |  | May 1, 2021
| Number of Nonvested Shares |  | Weighted Average Grant Date Fair Value Per Share |  | Number of Nonvested Shares |  | Weighted Average Grant Date Fair Value Per Share |  | Number of Nonvested Shares |  | Weighted Average Grant Date Fair Value Per Share
Outstanding at beginning of year | 469 |  |  | $ | 5.65 |  |  | 480 |  |  | $ | 5.62 |  |  | 449 |  |  | $ | 7.16 |
Granted | 360 |  |  | 3.15 |  |  | 214 |  |  | 5.66 |  |  | 223 |  |  | 3.92 |
Vested | (192) |  |  | 5.98 |  |  | (213) |  |  | 5.58 |  |  | (176) |  |  | 7.27 |
Forfeited | (20) |  |  | 4.98 |  |  | (12) |  |  | 5.64 |  |  | (16) |  |  | 7.00 |
Outstanding at end of year | 617 |  |  | $ | 4.11 |  |  | 469 |  |  | $ | 5.65 |  |  | 480 |  |  | $ | 5.62 |
Share-based Payment Arrangement, Option, Activity | A summary of stock option activity under our 2015 Plan and 2020 Plan during the fiscal year ended April 29, 2023 is as follows:
| Stock Options |  | Weighted Average Exercise Price Per Share |  | Weighted Average Remaining Contractual Life (Years) |  | Aggregate Intrinsic Value
Outstanding as of April 30, 2022 | 2,107 |  |  | $ | 8.13 |  |  | 4.98 |  | $ | — |
Granted | 336 |  |  | 3.02 |  |  | — |  |  | — |
Canceled or forfeited | (393) |  |  | 9.08 |  |  | — |  |  | — |
Exercised | (5) |  |  | 4.11 |  |  | — |  |  | 7 |
Outstanding as of April 29, 2023 | 2,045 |  |  | $ | 7.11 |  |  | 5.52 |  | $ | 858 |
Shares vested and expected to vest | 2,010 |  |  | $ | 7.17 |  |  | 5.46 |  | $ | 819 |
Exercisable as of April 29, 2023 | 1,222 |  |  | $ | 8.95 |  |  | 3.70 |  | $ | 103 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The following table provides the weighted-average fair value of options granted and the related assumptions used in the Black-Scholes model:
| Year Ended
| April 29, 2023 |  | April 30, 2022 |  | May 1, 2021
Fair value of options granted | $ | 1.34 |  |  | $ | 2.43 |  |  | $ | 1.71 |
Risk-free interest rate | 3.37 | % |  | 1.07 | % |  | 0.43 | %
Expected volatility | 41.10 | % |  | 40.60 | % |  | 40.53 | %
Expected life of option (in years) | 6.93 |  | 6.94 |  | 6.94
Share-based Compensation Expense | The following table presents a summary of the share-based compensation expense by equity type as follows:
| Year Ended
| April 29, 2023 |  | April 30, 2022 |  | May 1, 2021
Stock options | $ | 453 |  |  | $ | 458 |  |  | $ | 450 |
Restricted stock and stock units | 1,153 |  |  | 1,159 |  |  | 1,203 |
Employee stock purchase plans | 421 |  |  | 356 |  |  | 414 |
| $ | 2,027 |  |  | $ | 1,973 |  |  | $ | 2,067 |
A summary of the share-based compensation expense for stock options, restricted stock, restricted stock units and shares issued under the ESPP for fiscal years 2023, 2022, and 2021 is as follows:
| Year Ended
| April 29, 2023 |  | April 30, 2022 |  | May 1, 2021
Cost of sales | $ | 441 |  |  | $ | 434 |  |  | $ | 472 |
Selling | 424 |  |  | 472 |  |  | 484 |
General and administrative | 735 |  |  | 656 |  |  | 678 |
Product design and development | 427 |  |  | 411 |  |  | 433 |
| $ | 2,027 |  |  | $ | 1,973 |  |  | $ | 2,067 |

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