Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Taxes [Abstract]

Schedule of Loss before Provision for Income Taxes

Income (loss) before the provision for income taxes consists of the following:

	Year Ended December 31,
	2014		2013			2012
Domestic	$	(17,492)	$	(10,740	)	$	(18,139	)
Foreign		859		710			2,198
Total	$	(16,633)	$	(10,030	)	$	(15,941	)

Schedule of (Benefit from) Provision for Income Taxes

The provision for (benefit from) income taxes in the accompanying consolidated financial statements consists of the following:

	Year Ended December 31,
	2014		2013		2012
Current provision:
Federal	$	—	$	—	$	—
State		41		22		16
Foreign		219		128		95
Total current		260		150		111
Deferred (benefit):
Federal		—		—		(2,937	)
State		—		—		(470	)
Foreign		—		62		(193	)
Total deferred		—		62		(3,600	)
Total provision (benefit)	$	260	$	212	$	(3,489	)

Schedule of Reconciliation of U.S. Federal Statutory Rate to Effective Tax Rate

A reconciliation of the U.S. federal statutory rate to the Company's effective tax rate is as follows:

	Year Ended December 31,
	2014			2013			2012
Tax at statutory rates		(34.0)	%		(34.0	)%		(34.0	)%
State income taxes		(2.0)			(3.3	)		(3.4	)
Change in tax rate		(1.6)			5.0			0.4
Permanent differences		16.2			(11.7	)		9.6
Foreign rate differential		(0.4)			(0.4	)		0.3
Research and development credits		(7.9)			(9.5	)		—
Change in valuation allowance		31.2			56.0			5.2
Other, net		0.1			—			—
Effective tax rate		1.6	%		2.1	%		(21.9	)%

Schedule of Income Tax Effect of Each Type of Temporary Difference and Carryforward

The approximate income tax effect of each type of temporary difference and carryforward as of December 31, 2014 and 2013 is as follows:

	As of December 31,
	2014		2013
Net operating loss carry-forwards	$	42,633	$	30,763
Tax credit carry-forwards		6,482		5,211
Stock-based compensation		2,608		3,502
Intangible assets		(6,600)		(3,469	)
Fixed assets		246		85
Account receivable reserves		970		966
Accrued compensation		1,463		53
Capitalized research and development costs		—		47
Capitalized start-up costs		420		481
Other temporary differences		(334)		1,121
Deferred tax assets		47,888		38,760
Valuation allowance		(47,779)		(38,635	)
Net deferred tax assets	$	109	$	125