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Investments
 12 Months Ended
Jan. 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: 
January 31, 2021January 26, 2020
(in thousands)Fair ValueAmortized
Cost		Gross
Unrealized
Gain/(Loss)		Fair ValueAmortized
Cost		Gross
Unrealized
Gain/(Loss)
Convertible debt$11,989 $13,244 $(1,255)$10,700 $8,715 $1,985 
Total available-for-sale securities$11,989 $13,244 $(1,255)$10,700 $8,715 $1,985 
The following table summarizes the maturities of the Company’s available-for-sale securities:
January 31, 2021
(in thousands)Fair ValueAmortized Cost
Within 1 year$10,954 $11,700 
After 1 year through 5 years1,035 1,544 
Total available-for-sale securities$11,989 $13,244 
The Company's AFS securities consist of investments in convertible debt instruments issued by privately-held companies. The AFS investments with maturities within one year were included in "Other current assets" and with maturities greater than one year were included in "Other assets" in the Balance Sheets.