Marketable Securities (Tables)
|9 Months Ended|
Oct. 31, 2021
|Investments, Debt and Equity Securities [Abstract]|
|Summary of Marketable Securities||
The following is a summary of our marketable securities (in thousands):
Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).
Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef