Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Components of Loss before Income Taxes

The components of loss before income taxes are as follows:

	Year Ended December 31,
	2017			2016			2015
	(in thousands)
Domestic	$	(16,642	)	$	(8,572	)	$	(8,016	)
Foreign		(2,945	)		(2,738	)		(3,370	)
Total	$	(19,587	)	$	(11,310	)	$	(11,386	)

Reconciliation of Provision for Income Taxes at Statutory Rate and Provision (Benefit) for Income Taxes at Effective Tax Rate

For purposes of reconciling the Company’s provision for income taxes at the statutory rate and the Company’s provision (benefit) for income taxes at the effective tax rate, a notional 34% tax rate was applied as follows:

	Year Ended December 31,
	2017			2016			2015
	(in thousands)
Income tax at federal statutory rate	$	(6,659	)	$	(3,846	)	$	(3,871	)
Increase/(decrease) in tax resulting from:
State income tax expense, net of federal tax effect		(421	)		(183	)		(103	)
Nondeductible permanent items		1,506			1,012			567
Foreign rate differential		599			662			474
Tax rate change		7,226			(13	)		(74	)
Adjustment to deferred taxes		37			(132	)		(525	)
Change in valuation allowance		(2,291	)		2,351			2,921
Uncertain tax positions		76			83			50
Other		(26	)		42			(1	)
Total	$	47		$	(24	)	$	(562	)

Schedule of Provision for (Benefit from) Income Taxes

The provision for (benefit from) income taxes is as follows:

	Year Ended December 31,
	2017			2016			2015
	(in thousands)
Current:
Federal	$	(23	)	$	—		$	(14	)
State		51			31			4
Foreign		31			109			(101	)
		59			140			(111	)
Deferred:
Federal		3,307			(1,823	)		(2,536	)
State		(669	)		(396	)		(315	)
Foreign		(359	)		(296	)		(521	)
		2,279			(2,515	)		(3,372	)
Change in valuation allowance		(2,291	)		2,351			2,921
Total	$	47		$	(24	)	$	(562	)

Schedule of Net Deferred Tax Assets (Liabilities)

The net deferred tax assets (liabilities) at December 31, 2017 and 2016 are comprised of the following:

	As of December 31,
	2017			2016
	(in thousands)
Deferred rent	$	133		$	47
AMT credit		9			31
Accrued expenses		1,474			1,091
Deferred revenue		292			441
Net operating loss carryforward		14,957			18,722
Other assets		1,643			423
Intangible assets		(2,210	)		(2,173	)
Property and equipment		(190	)		(166	)
Other liabilities		—			(28	)
Valuation allowance		(16,590	)		(18,882	)
Total non-current deferred income tax liabilities	$	(482	)	$	(494	)

Schedule of Changes in Unrecognized Tax Benefits

The following changes occurred in the amount of unrecognized tax benefits during the years ended December 31, 2017, 2016, and 2015:

	Year Ended December 31,
	2017		2016		2015
	(in thousands)
Beginning balance of unrecognized tax benefits	$	250	$	167	$	117
Additions for current year tax positions		65		75		50
Ending balance (excluding interest and penalties)		315		242		167
Interest and penalties		11		8		—
Total	$	326	$	250	$	167