Quarterly report pursuant to Section 13 or 15(d)

Segment, Geographical and Other Revenue Information - Long-Lived Assets by Geographic Area (Details)

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Segment, Geographical and Other Revenue Information - Long-Lived Assets by Geographic Area (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
United States [Member]    
Schedule of long-lived assets by geographical area    
Long-Lived Assets $ 6,647 $ 6,282