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13. Income Taxes (Details) - USD ($) | 3 Months Ended | 6 Months Ended
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Jul. 31, 2016 | Aug. 02, 2015 | Jul. 31, 2016 | Aug. 02, 2015
Income Tax Disclosure [Abstract] |  |  |  |
Effective Income Tax Rate Reconciliation, Percent | 35.10% | 33.40% | 35.30% | 34.30%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate (in Dollars) | $ 169,000 | $ 221,000 | $ 169,000 | $ 221,000

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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