Information about Geographic Areas (Tables)

6 Months Ended

Jun. 30, 2012

Information about Geographic Areas [Abstract]

Revenue and long-lived assets by geographic area

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Total revenue:
North America	$	17,804	$	18,347	$	35,764	$	37,703
Asia		5,456		4,368		11,218		10,050
Europe		1,244		677		3,044		1,634
Other foreign		1		30		27		43
Total revenue	$	24,505	$	23,422	$	50,053	$	49,430

	June 30, 2012		December 31, 2011
Long-lived assets:
North America	$	4,363	$	4,334
Asia		144		111
Europe		4,877		5,019
Total long-lived assets	$	9,384	$	9,464