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Marketable Securities (Tables)
12 Months Ended
Jan. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Schedule of Marketable Securities
The following is a summary of our marketable securities (in thousands):
As of January 31, 2022
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair Value
Commercial paper$15,343 $— $— $15,343 
Corporate bonds91,735 — (303)91,432 
Municipal bonds9,197 — (32)9,165 
Total marketable securities$116,275 $— $(335)$115,940 
As of January 31, 2021
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Estimated
Fair Value
Commercial paper$23,171 $— $— $23,171 
Corporate bonds79,674 (24)79,657 
Total marketable securities$102,845 $$(24)$102,828