Income Taxes (Tables)

12 Months Ended

Jan. 31, 2020

Income Tax Disclosure [Abstract]

Summary of Loss Before Income Taxes

Loss before income taxes consisted of the following (in thousands):

	Fiscal Year Ended January 31,
	2020			2019			2018
United States	$	(17,051	)	$	(13,497	)	$	(13,121	)
Foreign		(1,880	)		(1,459	)		—
Loss before income taxes	$	(18,931	)	$	(14,956	)	$	(13,121	)

Reconciliation of Income Tax Benefit

Income tax benefit differed from the amount computed by applying the federal blended statutory income tax rate to pretax loss as a result of the following (in thousands):

	Fiscal Year Ended January 31,
	2020			Rate			2019			Rate			2018			Rate
Federal tax at statutory rate	$	(3,975	)		21	%	$	(3,141	)		21	%	$	(4,316	)		33	%
State taxes, net of federal benefit		12			—			(494	)		3	%		(396	)		3	%
Foreign income and withholding taxes		(98	)		1	%		(105	)		1	%		—			—
Permanent tax adjustment		720			(4	)%		843			(6	)%		527			(4	)%
Stock-based compensation		(624	)		3	%		(991	)		7	%		387			(3	)%
Change in valuation allowance		5,445			(29	)%		5,603			(37	)%		(6,786	)		52	%
Research and development credit		(1,279	)		7	%		(2,155	)		14	%		(1,080	)		8	%
Impact of U.S. tax law change		—			—			58			—			11,667			(89	)%
Other		(331	)		2	%		(2	)		—			—			—
Total	$	(130	)		1	%	$	(384	)		3	%	$	3			0	%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant portions of the Company’s deferred tax assets and liabilities related to the following (in thousands):

	As of January 31,
	2020			2019
Deferred tax assets:
Net operating loss carry forwards	$	38,407		$	26,277
Tax credit carryover		8,171			5,977
Operating lease asset		2,131			—
Stock-based compensation		1,167			1,071
Deferred revenue		44			73
Accruals and reserves		(130	)		1,549
Intangible assets amortization		—			(21	)
Other		184			—
Gross deferred tax assets		49,974			34,926
Valuation allowance		(47,792	)		(34,309	)
Net deferred tax assets	$	2,182		$	617
Deferred tax liabilities:
Operating lease liability	$	(2,042	)	$	—
Fixed assets depreciation		(124	)		(154	)
Acquired intangible assets		(16	)		(607	)
Gross deferred tax liabilities	$	(2,182	)	$	(761	)
Total deferred tax liabilities	$	—		$	(144	)

Summary of Activity Related to UTBs

The following table summarizes the activity related to UTBs (in thousands):

Balance at January 31, 2018	$	2,825
Increase related to prior year positions		8
Increase related to current year tax positions		1,592
Balance at January 31, 2019		4,425
Increase related to prior year positions		—
Increase related to current year tax positions		1,592
Balance at January 31, 2020	$	6,017