Product and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Breakdown of Product Net Sales

The following table provides a breakdown of product net sales for the years indicated (in thousands):

	Year ended December 31,
	2019		2018		2017
Commercial products	$	7,877	$	8,662	$	15,217
MMM products	4,828		9,445		4,629
Total net sales	$	12,705	$	18,107	$	19,846

Geographic Summary of Net Sales

A geographic summary of net sales is as follows (in thousands): 

	For the year ended December 31,
	2019		2018		2017
United States	$	12,599	$	17,736	$	19,446
International	106		371		400
Total net sales	$	12,705	$	18,107	$	19,846