XML 33 R17.htm IDEA: XBRL DOCUMENT v3.20.4
Intangible Assets
 12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Intangible Assets
The carrying values of intangible assets as of December 31, 2020 and 2019, respectively, consists of the following (in thousands except years):
December 31, 2020
GrossAccumulated AmortizationForeign Exchange Rate ChangesNet
Estimated Useful Life (in years)
Patents$2,963 $(1,975)$— $988 10
Developed technology - 150V560 (555)(5)— 6
Developed technology - 600V1,701 (1,684)(17)— 6
Total$5,224 $(4,214)$(22)$988 
December 31, 2019
GrossAccumulated AmortizationForeign Exchange Rate ChangesNet
Estimated Useful Life (in years)
Patents$2,963 $(1,679)$— $1,284 10
Developed technology - 150V560 (519)(34)7 6
Developed technology - 600V1,701 (1,575)(104)22 6
Total$5,224 $(3,773)$(138)$1,313 

The Company recorded amortization expenses related to intangible assets of $326 thousand and $653 thousand for the years ended December 31, 2020 and 2019, respectively.

Estimated future amortization expenses related to intangible assets at December 31, 2020 are as follows (in thousands):

Year Ending December 31,Amount
2021$296 
2022296 
2023296 
2024100 
Thereafter— 
Total$988