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Goodwill and Intangible Assets
 12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
Goodwill
The changes in the carrying amount of goodwill were as follows (in thousands):
December 31, 2020$— 
Acquisition and purchase accounting adjustment34,556 
December 31, 2021$34,556 
Intangible Assets
The following table presents the components of net intangible assets (in thousands):
December 31, 2021December 31, 2020
Weighted Average Useful Life (Years)Gross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying Amount
Acquired technology4$7,920 $(701)$7,219 $— $— $— 
Acquired customer-related8.7360 (14)346 — — — 
Acquired trade names21,478 (21)1,457 — — — 
Patents102,740 (1,328)1,412 2,538 (955)1,583 
Total5.2$12,498 $(2,064)$10,434 $2,538 $(955)$1,583 
Amortization expense related to intangible assets was $1.1 million, $0.4 million and $0.3 million for the years ended December 31, 2021, 2020 and 2019, respectively. As of December 31, 2021, expected remaining amortization expense of intangible assets by fiscal year is as follows (in thousands):
2022$3,074 
20232,962 
20242,201 
20251,473 
2026163 
Thereafter561 
Total expected amortization expense$10,434