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Selected Financial Statement Data (Tables) | 3 Months Ended
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Aug. 03, 2019
Selected Financial Statement Data [Abstract] |
Schedule of Inventory | Inventories consisted of the following:
| August 3, 2019 |  | April 27, 2019
Raw materials | $ | 36,239 |  |  | $ | 30,789 |
Work-in-process | 9,291 |  |  | 8,239 |
Finished goods | 39,928 |  |  | 39,804 |
| $ | 85,458 |  |  | $ | 78,832 |
Schedule of Property and Equipment | Property and equipment, net consisted of the following:
| August 3, 2019 |  | April 27, 2019
Land | $ | 1,754 |  |  | $ | 1,738 |
Buildings | 66,731 |  |  | 66,403 |
Machinery and equipment | 99,055 |  |  | 96,486 |
Office furniture and equipment | 6,145 |  |  | 6,195 |
Computer software and hardware | 53,611 |  |  | 55,460 |
Equipment held for rental | 287 |  |  | 287 |
Demonstration equipment | 7,172 |  |  | 7,422 |
Transportation equipment | 7,943 |  |  | 7,715 |
| 242,698 |  |  | 241,706 |
Less accumulated depreciation | 175,991 |  |  | 176,392 |
| $ | 66,707 |  |  | $ | 65,314 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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