Product and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Breakdown of Product Net Sales

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

	Year ended December 31,
	2018		2017		2016
Commercial	$	8,662	$	15,217	$	14,809
Military maritime	9,445		4,629		16,189
Total net sales	$	18,107	$	19,846	$	30,998

Geographic Summary of Net Sales

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

	For the year ended December 31,
	2018		2017		2016
United States	$	17,736	$	19,446	$	29,840
International	371		400		1,158
Total net sales	$	18,107	$	19,846	$	30,998