Segment Information

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

SEGMENT INFORMATION

10. SEGMENT INFORMATION

The Company has determined that it operates in two segments, the sapphire and pharmacy (until June 2021) businesses.

Revenue is attributed by geographic region based on ship-to location of the Company’s customers. The following table summarizes revenue by geographic region:

	Three months ended September 30,				Nine months ended September 30,
	2021		2020		2021		2020
	(in thousands)				(in thousands)
North America	$	1,247	$	788	$	2,356	$	2,628
Asia		49		91		258		359
Other		6		13		32		21
Total revenue	$	1,302	$	892	$	2,646	$	3,008

The following table summarizes sales by product type:

	Three months ended September 30,				Nine months ended September 30,
	2021		2020		2021		2020
	(in thousands)				(in thousands)
Optical	$	1,302	$	892	$	2,646	$	3,008

Substantially all of the Company’s assets are located in the United States.