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Segment Information and Geographic Data
 12 Months Ended
Dec. 31, 2020
Segment Reporting [Abstract]  
Segment Information and Geographic Data Segment Information and Geographic Data
As the operations comprise a single reporting segment, amounts disclosed in the consolidated financial statements represent those of the single reporting unit. There was one customer that accounted for the majority of revenues at December 31, 2020 and two customers that accounted for all of the revenues in 2019 and 2018, respectively.
Revenues by Geographic Location
The following geographic information reflects revenue based on customer location:
(in thousands)202020192018
Revenue
Japan$50,000 $— $— 
China118 118 118 
United States— 200 345 
Total$50,118 $318 $463 
Long-lived Assets by Location
Long-lived assets by location consist of property plant and equipment:
(in thousands)20202019
Long-lived assets
Canada$298 $93 
United States4,488 — 
Total$4,786 $93