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Goodwill and Intangible Assets, Net
 9 Months Ended
Oct. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets, Net
7. Goodwill and Intangible Assets, Net
Goodwill
The carrying amount of goodwill was as follows (in thousands):
Carrying Amount
Balance as of January 31, 2024
$8,145 
   Acquisition of Oxeye8,055 
   Foreign currency translation adjustments
(69)
Balance as of October 31, 2024
$16,131 
There was no goodwill impairment for any periods presented.
Intangible Assets
Intangible assets, net consisted of the following (in thousands):
October 31, 2024
Gross Carrying AmountAccumulated AmortizationNet Book ValueWeighted average remaining amortization period (years)
Developed technology from business combination (1)
$22,273 $(9,278)$12,995 2.3
Developed technology from asset acquisitions (2)
7,660 (1,119)6,541 2.6
Total$29,933 $(10,397)$19,536 
January 31, 2024
Gross Carrying AmountAccumulated AmortizationNet Book ValueWeighted average remaining amortization period (years)
Developed technology from business combination$6,200 $(4,467)$1,733 0.8
Developed technology from asset acquisitions (1)
914 (914)— 0.0
Total$7,114 $(5,381)$1,733 
(1) The amounts in the tables above include cumulative foreign currency translation adjustments, reflecting movement in the currencies of the underlying intangibles.
(2) During the three months ended October 31, 2024, the Company wrote off $0.9 million of fully amortized intangible assets as the technology had become obsolete.
Amortization expense was $2.5 million and $5.9 million for the three and nine months ended October 31, 2024, respectively, and $0.5 million and $1.6 million for the three and nine months ended October 31, 2023, respectively.
As of October 31, 2024, future amortization expense related to the intangibles assets is expected to be as follows (in thousands):
Fiscal Years
2025$2,159 
20267,911 
20277,911 
20281,555 
Total future amortization$19,536