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CASH, CASH EQUIVALENTS AND INVESTMENTS | 6 Months Ended
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Jul. 31, 2023
CASH, CASH EQUIVALENTS AND INVESTMENTS |
CASH, CASH EQUIVALENTS AND INVESTMENTS | NOTE 3 – CASH, CASH EQUIVALENTS AND INVESTMENTS Cash and Cash Equivalents The Company considers all liquid investments with original maturities of three months or less at the time of purchase to be cash equivalents. At July 31, 2023 and January 31, 2023, certain amounts of cash equivalents were invested in a money market fund with net assets invested in high-quality money market instruments. Such investments include U.S. Treasury obligations; obligations of U.S. government agencies, authorities, instrumentalities or sponsored enterprises; and repurchase agreements secured by U.S. government obligations. Dividend income related to money market investments is recorded when earned. The balances of accrued dividends at July 31, 2023 and January 31, 2023 were $0.6 million and $0.3 million, respectively. Investments The Company’s investments consisted of the following as of July 31, 2023 and January 31, 2023: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | July 31, | ​ | January 31,
​ | ​ | 2023 |  | 2023
Short-term investments | ​ | $ | 81,624 | ​ | $ | 151,511
Available-for-sale securities | ​ | ​ | 59,992 | ​ | ​ | —
Total investments | ​ | $ | 141,616 | ​ | $ | 151,511
​ Short-Term Investments Short-term investments as of July 31, 2023 and January 31, 2023 consisted solely of CDs with weighted average maturities of one year or less purchased from Bank of America, N.A. (the “Bank”). The Company has the intent and ability to hold the CDs until they mature, and they are carried at cost plus accrued interest. Interest income is recorded when earned and is included in other income. At July 31, 2023 and January 31, 2023, the weighted average annual interest rates of the outstanding CDs were 5.3% and 2.5%, respectively. The balances of accrued interest on the CDs at July 31, 2023 and January 31, 2023 were $1.6 million and $1.8 million, respectively. Available-For-Sale Securities AFS securities as of July 31, 2023 consisted solely of U.S. Treasury notes with original maturities of two and three years. The Company’s AFS securities consisted of the following amounts of amortized cost, allowance for credit losses, gross unrealized gains and losses and estimated fair value by contractual maturity as of July 31, 2023: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | July 31, 2023
​ | ​ | ​ | ​ | ​ | Allowance for | ​ | Gross | ​ | Gross | ​ | Estimated
​ | ​ | Amortized | ​ | Credit | ​ | Unrealized | ​ | Unrealized | ​ | Fair
​ |  | Cost |  | Losses |  | Gains |  | Losses |  | Value
U.S. Treasury notes: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Due in one to two years | ​ | $ | 25,162 | ​ | $ | — | ​ | $ | — | ​ | $ | 276 | ​ | $ | 24,886
Due in two to three years | ​ | ​ | 35,550 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 444 | ​ | ​ | 35,106
Totals | ​ | $ | 60,712 | ​ | $ | — | ​ | $ | — | ​ | $ | 720 | ​ | $ | 59,992
​ As of July 31, 2023, interest receivable in the amount of $0.6 million is included in the balance of AFS securities. For the three and six months ended July 31, 2023, the change in net unrealized holding losses for the Company’s AFS securities reported in other comprehensive income was approximately $0.7 million for both periods. For the three and six months ended July 31, 2023, there were no sales of the Company’s AFS securities, and therefore, there were no amounts of gains or losses reclassified out of other comprehensive income into net income. The Company does not believe the unrealized losses represent credit losses based on the evaluation of evidence as of July 31, 2023, which includes an assessment of whether it is more likely than not the Company will be required to sell or intends to sell the investment before recovery of the investment’s amortized cost basis. ​ Concentration Risk The Company has a substantial portion of its cash on deposit in the U.S. with the Bank and invested in a money market fund. The Company also maintains certain Euro-based bank accounts in Ireland and certain pound sterling-based bank accounts in the U.K. in support of the operations of APC. Management does not believe that the combined amount of the CDs and the cash deposited with the Bank, cash invested in the money market fund, and cash balances maintained at financial institutions in Ireland and the U.K., in excess of government-insured levels, represent material risks.

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- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//320/tableOfContent + Details
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