Segments and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Revenues, Expenses and Operating Income (Loss) by Market Segment

Revenues, expenses and operating income (loss) by market segment were as follows (in thousands):

	Years Ended December 31,
	2021			2020
Revenues:
Biomedical market	$	5,936		$	5,594
Anti-aging market		1,240			1,534
Total revenues		7,176			7,128
Operating expenses:
Therapeutic market		3,267			3,410
Biomedical market		4,346			4,785
Anti-aging market		1,484			1,751
Total operating expenses		9,097			9,946
Operating income (loss)
Therapeutic market		(3,267	)		(3,410	)
Biomedical market		1,590			809
Anti-aging market		(244	)		(217	)
Total operating loss	$	(1,921	)	$	(2,818	)

Summary of Significant Revenues in Following Regions

Significant revenues in the following regions are those that are attributable to the individual country within the region to which the product was shipped (in thousands):

	Years Ended December 31,
	2021		2020
North America	$	5,980	$	6,277
Asia		806		538
Europe		345		290
All other regions		45		23
Total	$	7,176	$	7,128