Segment Information

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

SEGMENT INFORMATION

2. SEGMENT INFORMATION

The Company has determined that it operates in two segments, the sapphire and pharmacy business.

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

	Year ended December 31,
	2020		2019
	(in thousands)
North America	$	4,039	$	3,324
Asia		406		185
Other		22		17
Total revenue	$	4,467	$	3,526

The following table summarizes sales by product type:

	Year ended December 31,
	2020		2019
	(in thousands)
Optical	$	3,611	$	3,338
Core		6		9
Rubicon DTP		850		179
Total revenue	$	4,467	$	3,526

The following table summarizes assets by geographic region:

	As of December 31,
	2020		2019
	(in thousands)
United States	$	31,240	$	29,703
Malaysia		—		5,094
Other		—		4
Total assets	$	31,240	$	34,801

 The total assets of Rubicon DTP were not material to the total assets of the Company as stated on the consolidated balance sheets, as of December 31, 2020 and 2019.

Rubicon DTP accounted for approximately $340,000 and $447,000 of the Company’s loss for the year ended December 31, 2020 and 2019, respectively.