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Short-term Investments | 9 Months Ended
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Nov. 30, 2023
Short-Term Investments [Abstract] |
Short-term Investments | 3. Short-term Investments and Fair Value Measurements Short-term investments are securities with original maturities of greater than three months but less than twelve months and are comprised of U.S. Treasury Bills. The Company determines the classification of these securities as trading, available for sale or held to maturity at the time of purchase and re-evaluates these determinations at each balance sheet date. The Company's short-term investments are classified as held-to-maturity for the period presented as it has the positive intent and ability to hold these investments to maturity. The Company's held-to-maturity investments are stated at amortized cost, which approximated fair value, and are periodically assessed for other-than-temporary impairment.. Amortized cost and estimated fair value of investment securities classified as held-to-maturity were as follows at November 30, 2023 (in thousands):
|  | November 30, 2023
|  |  |  | Gross |  | Gross |  |
|  | Cost or |  | Unrealized |  | Unrealized |  | Estimated
|  | Amortized |  | Holding |  | Holding |  | Fair
|  | Cost |  | Gains |  | Losses |  | Value
November 30, 2023 |  |  |  |  |  |  |  |
Investment securities due in less than one year |  | $18,495 |  | $- |  | $4 |  | $18,491
February 28, 2023 |  |  |  |  |  |  |  |
Investment securities due in less than one year |  | $- |  | $- |  | $- |  | $-

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//320/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-10 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-6B Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-6B Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) -Publisher SEC Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//946-320/tableOfContent Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//940-320/tableOfContent Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//942-320/tableOfContent + Details
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