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CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)

9 Months Ended

Oct. 31, 2023

CASH, CASH EQUIVALENTS AND INVESTMENTS

Investments

​

​	​	​	​	​	​	​
​		October 31,		​	January 31,
​	​	2023			2023
Short-term investments	​	$	108,029	​	$	151,511
Available-for-sale securities	​	​	103,917	​	​	—
Total investments	​	$	211,946	​	$	151,511

Schedule of available-for-sale securities

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October 31, 2023

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Allowance for

​

Gross

​

Gross

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Estimated

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​

Amortized

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Credit

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Unrealized

​

Unrealized

​

Fair

​

Cost

Losses

Gains

Losses

Value

U.S. Treasury notes:

​

​

​

​

​

​

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​

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​

​

​

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Due in one to two years

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$

50,282

​

$

—

​

$

3

​

$

357

​

$

49,928

Due in two to three years

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​

45,514

​

​

—

​

​

—

​

​

742

​

​

44,772

U.S. corporate debt security:

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​

​

​

​

​

​

​

​

​

​

​

​

​

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Due in two to three years

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​

9,268

​

​

—

​

​

—

​

​

51

​

​

9,217

Totals

​

$

105,064

​

$

—

​

$

3

​

$

1,150

​

$

103,917

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- References

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Tabular disclosure of investment.

+ 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

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Topic 321
-Publisher FASB
-URI https://asc.fasb.org//321/tableOfContent

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Topic 325
-Publisher FASB
-URI https://asc.fasb.org//325/tableOfContent

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Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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