Investments (Tables)

12 Months Ended

Jan. 31, 2021

Investments [Abstract]

Summary of 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

Schedule of available-for-sale securities, classified by maturity period

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