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Available-for-sale securities
9 Months Ended
Oct. 31, 2021
Investments [Abstract]  
Available-for-sale securities Available-for-sale securities
The following table summarizes the values of the Company’s available-for-sale securities:
 October 31, 2021January 31, 2021
(in thousands)Fair ValueAmortized
Cost
Gross
Unrealized Gain/(Loss)
Fair ValueAmortized
Cost
Gross
Unrealized Gain/(Loss)
Convertible debt$11,677 $13,862 $(2,185)$11,989 $13,244 $(1,255)
Total available-for-sale securities$11,677 $13,862 $(2,185)$11,989 $13,244 $(1,255)
The following table summarizes the maturities of the Company’s available-for-sale securities:
October 31, 2021
(in thousands)Fair ValueAmortized Cost
Within 1 year$10,466 $11,960 
After 1 year through 5 years1,211 1,902 
Total available-for-sale securities$11,677 $13,862 
The Company's available-for-sale securities consist of investments in convertible debt instruments issued by privately-held companies. The available-for-sale securities with maturities within one year were included in "Other current assets" and maturities greater than one year were included in "Other assets" in the Balance Sheets.