Balance Sheet Components

12 Months Ended

Dec. 31, 2012

Balance Sheet Components [Abstract]

Balance Sheet Components

Balance Sheet Components

The components of property and equipment, net as of December 31, 2012 and 2011 (in thousands) are as follows:

	December 31,
	2012			2011
Computer equipment and purchased software	$	9,100		$	9,955
Software developed for internal use	10,602			8,947
Furniture and fixtures	2,683			3,131
Leasehold improvements	2,185			2,112
	24,570			24,145
Less: Accumulated depreciation and amortization	(16,717		)	(16,862		)
	$	7,853		$	7,283

Depreciation and amortization expense for the years ended December 31, 2012, 2011 and 2010 was $4.0 million, $4.6 million million and $3.1 million, respectively.

The components of other accrued liabilities as of December 31, 2012 and 2011 (in thousands) are as follows:

	December 31,
	2012		2011
Accrued employee compensation	$	3,135	3,021
Accrued market research honoraria	1,783		1,476
Accrued royalties payable	425		1,273
Other accrued expenses	4,178		3,830
	$	9,521	$	9,600