Income Taxes (Tables)

12 Months Ended

Jan. 31, 2017

Income Tax Disclosure [Abstract]

Components of Income (Loss) Before Income Taxes

The components of income (loss) before income taxes are as follows:

	Year Ended January 31,
	2017			2016			2015
United States	$	(1,274	)	$	(4,201	)	$	(3,682	)
Foreign		1,753			936			1,256
Income (loss) before taxes	$	479		$	(3,265	)	$	(2,426	)

Reconciliation of Effective Tax Rate to US Federal Statutory Rate

The Company’s effective tax rate varies from the U.S. federal statutory rate as follows:

	Year Ended January 31,
	2017			2016			2015
United States federal income tax rate		34.0	%		34.0	%		34.0	%
State taxes, net of federal benefit		(0.6	)		0.8			0.5
Meals and entertainment		10.8			(1.1	)		(1.9	)
Stock-based compensation		69.0			(12.3	)		(20.4	)
Executive compensation		31.3			(3.2	)		(3.4	)
United States federal and state credits		(163.5	)		26.2			33.3
Change in valuation allowance		406.5			(89.5	)		(689.8	)
Change in uncertain tax positions		(46.3	)		(2.1	)		—
Foreign taxes and rate differential		(6.8	)		1.0			(0.8	)
Write-off of tax attributes		—			—			(40.7	)
Other		1.9			(1.0	)		(0.4	)
Total		336.3	%		(47.2	)%		(689.6	)%

Components of Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities are as follows:

	January 31,
	2017			2016
Deferred tax assets:
Net operating loss carryforwards	$	10,347		$	9,832
Business credit carryforwards		9,593			7,685
Accrued expenses		1,155			1,129
Amortization		221			179
Stock-based compensation		1,048			824
Deferred revenue		—			253
Deferred rent		1,041			946
Unrealized foreign exchange losses		11			151
Gross deferred tax assets		23,416			20,999
Valuation allowance		(21,929	)		(19,962	)
Total deferred tax assets		1,487			1,037
Deferred tax liabilities:
Depreciation		(873	)		(785	)
Deferred revenue		(272	)		—
Total deferred tax liabilities		(1,145	)		(785	)
Net deferred tax assets	$	342		$	252

Components of (Provision) Benefit for Income Taxes

The components of the provision for income taxes are as follows:

	Year Ended January 31,
	2017			2016			2015
Current:
Federal	$	(1,118	)	$	(1,088	)	$	(989	)
State		3			4			(6	)
Foreign		(592	)		(543	)		(593	)
Total current		(1,707	)		(1,627	)		(1,588	)
Deferred:
Federal		1,524			2,437			2,365
State		443			484			(836	)
Foreign		96			85			64
Change in valuation allowance		(1,967	)		(2,921	)		(16,736	)
Total deferred		96			85			(15,143	)
Total provision for income taxes	$	(1,611	)	$	(1,542	)	$	(16,731	)

Schedule of Uncertainties in Income Tax Provision Liability

A tabular roll forward of the Company’s uncertainties in its income tax provision liability is presented below:

	Year Ended January 31
	2017			2016			2015
Gross balance at February 1	$	2,836		$	2,442		$	2,167
Additions based on tax positions related to the     current year		23			485			648
Reductions for tax positions of prior years		(302	)		(91	)		(373	)
Gross balance at January 31	$	2,557		$	2,836		$	2,442