Segment and Geographic Data (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Schedule of revenue by geographic information

Geographic information consisted of the following (in thousands):

	Three Months Ended March 31,
	2016	2015
Product Revenue
United States	14,708	10,288
Germany	4,722	4,021
Rest of World	552	391
	19,982	14,700

Schedule of property, plant and equipment by geographic information

	March 31, 2016		December 31, 2015
Property and equipment, net
United States	$	13,465	$	10,836
Germany	127		130
Rest of World	—		—
	$	13,592	$	10,966