Information about Geographic Areas (Tables)

9 Months Ended

Sep. 30, 2012

Information about Geographic Areas [Abstract]

Revenue and long-lived assets by geographic area

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Total revenue:
North America	$	16,382	$	19,197	$	52,145	$	56,900
Asia		7,733		3,449		18,951		13,499
Europe		1,365		1,348		4,409		2,981
Other foreign		5		35		33		79
Total revenue	$	25,485	$	24,029	$	75,538	$	73,459

	September 30, 2012		December 31, 2011
Long-lived assets:
North America	$	3,340	$	4,334
Asia		230		111
Europe		4,791		5,019
Total long-lived assets	$	8,361	$	9,464