XML 56 R39.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Cash Flow Information (Tables) | 12 Months Ended
--- | ---
Apr. 28, 2018
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 28, 2018 |  | April 29, 2017 |  | April 30, 2016
(Increase) decrease: |  |  |  |  |
Account receivable | $ | 2,266 |  |  | $ | (2,718 | ) |  | $ | 3,789 |
Long-term receivables | 1,548 |  |  | 2,213 |  |  | 2,851 |
Inventories | (8,517 | ) |  | 3,581 |  |  | (5,100 | )
Costs and estimated earnings in excess of billings | 5,911 |  |  | (6,203 | ) |  | 4,867 |
Prepaid expenses and other current assets | (1,252 | ) |  | (980 | ) |  | 1,290 |
Income taxes receivables | (4,747 | ) |  | 4,201 |  |  | 1,061 |
Investment in affiliates and other assets | 413 |  |  | (611 | ) |  | (776 | )
Increase (decrease): |  |  |  |  |  |  |  |
Current marketing obligations and other payables | (358 | ) |  | 857 |  |  | 21 |
Accounts payable | (2,573 | ) |  | 5,544 |  |  | (9,926 | )
Customer deposits | (53 | ) |  | (1,514 | ) |  | (941 | )
Accrued expenses | 3,830 |  |  | 2,351 |  |  | 776 |
Warranty obligations | 346 |  |  | (2,986 | ) |  | 4,726 |
Billings in excess of costs and estimated earnings | 1,034 |  |  | 536 |  |  | (13,436 | )
Long-term warranty obligations | 1,729 |  |  | 389 |  |  | (710 | )
Income taxes payable | (592 | ) |  | 1,331 |  |  | (37 | )
Deferred revenue | 2,499 |  |  | 1,256 |  |  | 2,120 |
Long-term marketing obligations and other payables | 379 |  |  | (43 | ) |  | (456 | )
| $ | 1,863 |  |  | $ | 7,204 |  |  | $ | (9,881 | )
Schedule of Supplemental Cash Flow Information | Supplemental disclosures of cash flow information consisted of the following:
| Year Ended
| April 28, 2018 |  | April 29, 2017 |  | April 30, 2016
Cash payments for: |  |  |  |  |
Interest | $ | 193 |  |  | $ | 228 |  |  | $ | 303 |
Income taxes, net of refunds | 8,937 |  |  | 3,196 |  |  | (824 | )
Schedule of Non-Cash Investing and Financing Activities | Supplemental schedule of non-cash investing and financing activities consisted of the following:
|  | Year Ended
|  | April 28, 2018 |  | April 29, 2017 |  | April 30, 2016
Demonstration equipment transferred to inventory |  | $ | 72 |  |  | $ | 218 |  |  | $ | 227 |
Purchases of property and equipment included in accounts payable |  | 1,983 |  |  | 2,524 |  |  | 142 |
Contributions of common stock under the ESPP |  | 1,682 |  |  | 840 |  |  | 1,777 |
Contingent consideration related to acquisition of ADFLOW |  | — |  |  | 31 |  |  | 1,955 |

X
- Definition Tabular disclosure of the net increase (decrease) in operating capital in the operating section of the statement of cash flows, represents the entire footnote disclosure that provides details regarding the net change during the reporting period of all assets and liabilities used in operating activities. + References No definition available. + Details
Name: | us-gaap_CashFlowOperatingCapitalTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of noncash investing and financing activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
Name: | us-gaap_ScheduleOfOtherSignificantNoncashTransactionsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration