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Notes Payable (Details) - USD ($) $ in Thousands |  | 9 Months Ended
--- | --- | ---
May 05, 2020 | Oct. 31, 2020 | Oct. 31, 2019
Debt Instrument [Line Items] |  |  |
Proceeds from PPP loan |  | $ 1,607 | $ 0
Paycheck Protection Program, CARES Act |  |  |
Debt Instrument [Line Items] |  |  |
Proceeds from PPP loan | $ 1,600 |  |
Interest rate (as a percent) | 1.00% |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The cash inflow from borrowings supported by a written promise to pay an obligation that is uncollateralized (where debt is not backed by the pledge of collateral). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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