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CASH, CASH EQUIVALENTS AND INVESTMENTS - Available-for-Sale Securities (Details) $ in Thousands | 3 Months Ended
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Apr. 30, 2023 USD ($)
Cash and Cash Equivalents |
Interest receivable | $ 100
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Current, Statement of Financial Position [Extensible Enumeration] | Debt Securities, Available-for-Sale, Current
Proceeds from sale of debt securities, available-for-sale | $ 0
Amounts of gains or losses reclassified out of other comprehensive income | 0
US Treasury notes |
Available-for-sale securities |
Amortized cost, Due in one to two years | 15,014
Amortized Cost, Due in two to three years | 15,399
Amortized Cost | 30,413
Gross Unrealized Losses | 37
Fair value, Due in one to two years | 14,977
Fair Value, Due in two to three years | 15,399
Fair Value | $ 30,376
Minimum | US Treasury notes |
Cash and Cash Equivalents |
Available-for-sale securities term | 2 years
Maximum | US Treasury notes |
Cash and Cash Equivalents |
Available-for-sale securities term | 3 years

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year to second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second fiscal year though third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year to second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second fiscal year through Third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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