Information about Geographic Areas (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Revenue and Long-Lived Assets by Geographic Area

Revenue by geography is based on the sales region of the customer. The following table sets forth revenue and long-lived assets by geographic area (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Total revenue:
North America	$	21,291	$	27,015	$	45,359	$	50,761
Asia		554		603		828		1,988
Europe		893		1,255		1,990		2,389
Total revenue	$	22,738	$	28,873	$	48,177	$	55,138

	June 30, 2016		December 31, 2015
Long-lived assets:
North America	$	1,062	$	1,353
Asia		265		247
Europe		4,294		4,345
Total long-lived assets	$	5,621	$	5,945