Segment Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Information [Abstract]

Total Revenue to Unaffiliated Customers by Geographic Area, Based on Location of Customer

Total revenue to unaffiliated customers by geographic area, based on the location of the customer, was as follows:

	Year Ended December 31,
	2014		2013		2012
Revenue:
North America	$	75,419	$	65,336	$	55,836
Europe		30,624		27,180		20,314
Japan		7,902		6,497		5,949
Asia Pacific		10,109		10,095		5,174
Other		963		787		700
Total revenue	$	125,017	$	109,895	$	87,973