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Selected Financial Statement Data (Tables) | 12 Months Ended
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Apr. 29, 2023
Inventory Disclosure [Abstract] |
Schedule of inventory, current | Inventories consisted of the following:
| April 29, 2023 |  | April 30, 2022
Raw materials | $ | 81,627 |  |  | $ | 71,410 |
Work-in-process | 14,155 |  |  | 14,238 |
Finished goods | 53,666 |  |  | 48,744 |
| $ | 149,448 |  |  | $ | 134,392 |
Property, plant and equipment | Property and equipment, net consisted of the following:
| April 29, 2023 |  | April 30, 2022
Land | $ | 1,996 |  |  | $ | 1,899 |
Buildings | 71,222 |  |  | 69,170 |
Machinery and equipment | 126,164 |  |  | 110,079 |
Office furniture and equipment | 4,112 |  |  | 4,098 |
Computer software and hardware | 44,700 |  |  | 46,922 |
Construction in Process | 2,805 |  |  | 5,792 |
Demonstration equipment | 7,432 |  |  | 7,260 |
Transportation equipment | 7,057 |  |  | 7,065 |
| 265,488 |  |  | 252,285 |
Less accumulated depreciation | 193,341 |  |  | 185,520 |
| $ | 72,147 |  |  | $ | 66,765 |
Schedule of accrued liabilities | Accrued expenses consisted of the following:
| April 29, 2023 |  | April 30, 2022
Compensation | $ | 17,466 |  |  | $ | 15,944 |
Taxes, other than income taxes | 3,390 |  |  | 6,741 |
Accrued employee benefits | 3,953 |  |  | 3,227 |
Operating lease liabilities | 2,253 |  |  | 2,309 |
Short-term accrued expenses | 8,943 |  |  | 6,738 |
| $ | 36,005 |  |  | $ | 34,959 |
Schedule of other nonoperating income (expense) | Other (expense) income, net consisted of the following:
| Year Ended
| April 29, 2023 |  | April 30, 2022 |  | May 1, 2021
Foreign currency transaction gains (losses) | $ | 479 |  |  | $ | (227) |  |  | $ | (675) |
Equity in losses of affiliates | (3,332) |  |  | (2,970) |  |  | (2,370) |
Impairment of equity method investee | (4,473) |  |  | — |  |  | — |
Other | 115 |  |  | 88 |  |  | 62 |
| $ | (7,211) |  |  | $ | (3,109) |  |  | $ | (2,983) |

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