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Revenue Recognition - Additional Information (Detail) - USD ($) | 3 Months Ended |
--- | --- | ---
May 02, 2020 | Jan. 31, 2020
Disaggregation of Revenue [Abstract] |  |
Contract liabilities and extended warranties | $ 375,000 | $ 466,000
Revenue recognized | 225,000 |
Contract assets balance | 870,000 | $ 944,000
Amortization of incremental direct costs | 15,000 |
Deferred incremental direct contract costs reported in other current assets | 59,000 |
Deferred incremental direct costs net of accumulated amortization | $ 929,000 |
Capitalized Contract Costs Benefitial Term | 6 years |

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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130533-203044 + Details
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