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Investments | 12 Months Ended
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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, 2021 |  | January 26, 2020
(in thousands) | Fair Value |  | Amortized Cost |  | Gross Unrealized Gain/(Loss) |  | Fair Value |  | Amortized 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 Value |  | Amortized Cost |  |  |  |
Within 1 year | $ | 10,954 |  |  | $ | 11,700 |  |  |  |  |
After 1 year through 5 years | 1,035 |  |  | 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.

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