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2. Recently Adopted Accounting Policies (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 28, 2018 | Apr. 29, 2018 | Oct. 29, 2017 | Oct. 28, 2018 | Oct. 29, 2017 | Jan. 28, 2018
Accounting Changes and Error Corrections [Abstract] |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  | 21.00% |  |  |  | 35.00%
Reclassification from AOCI, Current Period, Tax | $ 0 | $ 111,000 | $ 0 | $ 111,000 | $ 0 |
Cumulative Effect on Retained Earnings, Net of Tax |  | $ 210,000 |  |  |  |
Contract with Customer, Liability | $ 3,480,000 |  |  | $ 3,480,000 |  | $ 3,951,000

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130532-203044 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045 + Details
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