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Revenue (Tables) | 9 Months Ended
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Oct. 28, 2018
Revenue from Contract with Customer [Abstract] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles | The following presents the amounts by which financial statement line items were affected in the current periods due to the adoption of ASC 606 as compared with the guidance that was in effect before the change:
| Three Months Ended |  | Nine Months Ended
Statements of Income | October 28, 2018 |  | October 28, 2018
(in thousands, except per share amounts) | Increase/(decrease) |  | Increase/(decrease)
Net sales | $ | 3,251 |  |  | $ | 9,597 |
Cost of sales | $ | 746 |  |  | $ | 2,190 |
Provision for taxes | $ | 526 |  |  | $ | 1,555 |
Net income | $ | 1,979 |  |  | $ | 5,851 |
Earnings per share: |  |  |  |  |
Basic | $ | 0.03 |  |  | $ | 0.09 |
Diluted | $ | 0.03 |  |  | $ | 0.09 |
Balance Sheets | October 28, 2018
(in thousands) | Increase/(decrease)
Deferred revenue | $ | (19,889 | )

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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