Revenue

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue

Note 12. Revenue

Revenue from sale of lidar sensor kits, which are recognized at a point in time, was $7.4 million and $2.3 million in three months ended June 30, 2021 and 2020, respectively, and $14.0 million and $4.6 million in six months ended June 30, 2021 and 2020, respectively.

The following table presents total revenues by geographic area based on the location products were shipped to and services provided (in thousands):​​​​​​​

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
United States	$	2,572	$	2,788	$	4,426	$	4,061
Americas, excluding United States		161		39		528		109
Europe, Middle East and Africa		2,931		685		6,070		1,268
Asia and Pacific		1,696		769		2,947		1,143
Total	$	7,360	$	4,281	$	13,971	$	6,581