Segment Information

6 Months Ended

Jun. 30, 2022

Segment Reporting [Abstract]

SEGMENT INFORMATION

10. SEGMENT INFORMATION

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 June 30,				Six months ended June 30,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
North America	$	643	$	754	$	1,411	$	1,108
Asia		133		70		326		209
Other		29		24		40		26
Total revenue	$	805	$	848	$	1,777	$	1,343

For the three and six months ended June 30, 2022 and 2021, all revenues from continuing operations were from the sale of optical sapphire products. All of the Company’s assets are located in the United States.