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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Apr. 28, 2018
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data (Unaudited) | Note 20. Quarterly Financial Data (Unaudited) The following table presents summarized quarterly financial data:
| Fiscal Year 2018(1)(2)(3)
| July 29, 2017 |  | October 28, 2017 |  | January 27, 2018 |  | April 28, 2018
Net sales | $ | 172,728 |  |  | $ | 169,309 |  |  | $ | 130,316 |  |  | $ | 138,177 |
Gross profit | 44,646 |  |  | 42,604 |  |  | 28,567 |  |  | 29,852 |
Net income (loss) | 8,429 |  |  | 7,132 |  |  | (6,189 | ) |  | (3,810 | )
Basic earnings (loss) per share | 0.19 |  |  | 0.16 |  |  | (0.14 | ) |  | (0.09 | )
Diluted earnings (loss) per share | 0.19 |  |  | 0.16 |  |  | (0.14 | ) |  | (0.09 | )
| Fiscal Year 2017(4)
| July 30, 2016 |  | October 29, 2016 |  | January 28, 2017 |  | April 29, 2017
Net sales | $ | 157,146 |  |  | $ | 169,992 |  |  | $ | 115,719 |  |  | $ | 143,682 |
Gross profit | 39,067 |  |  | 44,308 |  |  | 23,316 |  |  | 33,724 |
Net income (loss) | 5,539 |  |  | 9,021 |  |  | (5,127 | ) |  | 909 |
Basic earnings (loss) per share | 0.13 |  |  | 0.21 |  |  | (0.12 | ) |  | 0.02 |
Diluted earnings (loss) per share | 0.13 |  |  | 0.20 |  |  | (0.12 | ) |  | 0.02 |
(1) The financial data for the quarter ended October 28, 2017 includes the sale of our non-digital division assets. See "Note 5. Sale of Non-Digital Division Assets" for further information. (2) The financial data for the quarters ended October 28, 2017 and April 28, 2018 includes additional warranty charges due to specific site issues of $3,179 and $2,354, respectively. See "Note 18. Commitments and Contingencies" for further information. (3) The financial data for the quarters ended January 27, 2018 and April 28, 2018 includes the effects of the Tax Act, which impacted our deferred tax asset valuation and the impact of deemed repatriation of foreign earnings with an increase to tax expense of $4,280 and a decrease to tax expense of $461. See "Note 14. Income Taxes" for further information. (4) The financial data for the quarter ended October 29, 2016 includes an impairment loss on intangible assets. See "Note 6. Goodwill and Intangible Assets" for further information.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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