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Cash Flow Information - Change in Operating Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2016 | May 02, 2015 | Apr. 26, 2014
(Increase) decrease: |  |  |
Restricted cash | $ 298 | $ 18 | $ (466)
Accounts receivable | 3,789 | 6,412 | (18,293)
Long-term receivables | 2,851 | 3,234 | 3,027
Inventories | (5,100) | (1,907) | (12,771)
Costs and estimated earnings in excess of billings | 4,867 | (1,667) | 5,955
Prepaid expenses and other current assets | 1,290 | (575) | (536)
Income taxes receivable | 1,061 | (3,084) | (2,414)
Advertising rights and other assets | (776) | 912 | 64
Increase (decrease): |  |  |
Current marketing obligations and other payables | 21 | (146) | 372
Accounts Payable | (9,926) | 5,594 | 6,701
Customer deposits | (941) | (1,315) | 4,931
Accrued expenses | 476 | 2,860 | 165
Warranty obligations | 4,726 | (2,638) | 543
Billings in excess of costs and estimated earnings | (13,436) | 1,314 | 8,238
Long-term warranty obligations | (710) | 1,869 | 1,560
Income taxes payable | (40) | (666) | (527)
Deferred revenue | 2,120 | (250) | (836)
Long-term marketing obligations and other payables | (456) | 3,468 | (501)
Change in operating assets and liabilities | $ (9,886) | $ 13,433 | $ (4,788)

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- Definition The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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