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v3.19.1

Cash Flow Information (Tables) | 12 Months Ended
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Apr. 27, 2019
Supplemental Cash Flow Information [Abstract] |
Summary of Changes in Operating Assets and Liabilities | The changes in operating assets and liabilities consisted of the following:
| Year Ended
| April 27, 2019 |  | April 28, 2018 |  | April 29, 2017
(Increase) decrease: |  |  |  |  |
Account receivable | $ | 10,856 |  |  | $ | 2,266 |  |  | $ | (2,718 | )
Long-term receivables | 329 |  |  | 1,548 |  |  | 2,213 |
Inventories | (4,076 | ) |  | (8,517 | ) |  | 3,581 |
Contract assets | (3,040 | ) |  | 5,911 |  |  | (6,203 | )
Prepaid expenses and other current assets | 472 |  |  | (1,252 | ) |  | (980 | )
Income taxes receivables | 4,250 |  |  | (4,747 | ) |  | 4,201 |
Investment in affiliates and other assets | 48 |  |  | 413 |  |  | (611 | )
Increase (decrease): |  |  |  |  |  |  |  |
Accounts payable | (2,747 | ) |  | (2,573 | ) |  | 5,544 |
Contract liabilities | 10,774 |  |  | 3,480 |  |  | 278 |
Accrued expenses | 4,631 |  |  | 3,472 |  |  | 3,208 |
Warranty obligations | (4,393 | ) |  | 346 |  |  | (2,986 | )
Long-term warranty obligations | (1,079 | ) |  | 1,729 |  |  | 389 |
Income taxes payable | (3,023 | ) |  | (592 | ) |  | 1,331 |
Long-term marketing obligations and other payables | (1,116 | ) |  | 379 |  |  | (43 | )
| $ | 11,886 |  |  | $ | 1,863 |  |  | $ | 7,204 |
Schedule of Supplemental Cash Flow Information | Supplemental disclosures of cash flow information consisted of the following:
| Year Ended
| April 27, 2019 |  | April 28, 2018 |  | April 29, 2017
Cash payments for: |  |  |  |  |
Interest | $ | 177 |  |  | $ | 193 |  |  | $ | 228 |
Income taxes, net of refunds | (1,934 | ) |  | 8,937 |  |  | 3,196 |
Schedule of Non-Cash Investing and Financing Activities | Supplemental schedule of non-cash investing and financing activities consisted of the following:
|  | Year Ended
|  | April 27, 2019 |  | April 28, 2018 |  | April 29, 2017
Demonstration equipment transferred to inventory |  | $ | 97 |  |  | $ | 72 |  |  | $ | 218 |
Purchases of property and equipment included in accounts payable |  | 1,106 |  |  | 1,983 |  |  | 2,524 |
Contributions of common stock under the ESPP |  | 1,650 |  |  | 1,682 |  |  | 840 |
Contingent consideration related to acquisition |  | — |  |  | — |  |  | 31 |

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