Income Taxes (Tables)

12 Months Ended

Apr. 30, 2021

Income Tax Disclosure [Abstract]

Schedule of Components of Net Loss Before Income Taxes

The components of the Company’s net loss before provision for income taxes for the fiscal years ended April 30, 2021, 2020 and 2019 was as follows (in thousands):

	Fiscal Year Ended April 30,
	2021		2020		2019
Domestic	$	(58,407)	$	(69,887)	$	(33,868)
Foreign	3,415		889		788
Net loss before provision for income taxes	$	(54,992)	$	(68,998)	$	(33,080)

Schedule of Provision for Income Tax Expenses

The components of the Company’s provision for income taxes for the fiscal years ended April 30, 2021, 2020 and 2019 was as follows (in thousands):

	Fiscal Year Ended April 30,
	2021		2020		2019
Current expense
Federal	$	—	$	—	$	—
State	286		113		2
Foreign	418		267		264
Total	704		380		266
Deferred expense
Federal	—		—		—
State	—		—		—
Foreign	—		—		—
Total	—		—		—
Total provision for income taxes	$	704	$	380	$	266

Schedule of Federal Statutory Rate to Effective Tax Rate Reconciliation

The reconciliation of U.S. federal statutory rate to the Company’s effective tax rate was follows (in thousands):

	Fiscal Year Ended April 30,
	2021		2020		2019
Expected benefit at federal statutory rate	$	(11,628)	$	(14,489)	$	(6,947)
State tax expense—net of federal benefit	286		113		2
Impact of foreign operations	(299)		85		306
Federal research and development credit	(694)		(530)		(389)
Change in valuation allowance	30,587		14,837		6,587
Stock-based compensation	(17,667)		(23)		337
Meals and entertainment	35		242		207
Other permanent items	84		145		163
Total provision for income taxes	$	704	$	380	$	266

Schedule of Components of Deferred Tax Assets and Liabilities

The components of deferred tax assets and liabilities as of April 30, 2021 and 2020 was as follows (in thousands):

	As of April 30,
	2021		2020
Deferred tax assets
Accrued payroll	$	889	$	2,081
Other accruals & reserves	4,053		3,174
Operating lease liability	1,323		2,235
Deferred revenue	1,258		2,959
Depreciation	1,588		1,365
Net operating losses	73,189		40,242
R&D tax credit	4,778		3,617
Stock based compensation	3,690		2,628
Other	327		(7)
Gross deferred tax assets	91,095		58,294
Valuation allowance	(88,015)		(55,812)
Total deferred tax assets	3,080		2,482
Deferred tax liabilities
Prepaid expenses	(1,883)		(436)
Operating lease right-of-use assets	(1,197)		(2,046)
Total deferred tax liabilities	(3,080)		(2,482)
Net deferred tax assets (liabilities)	$	—	$	—

Schedule of Unrecognized Tax Benefits Reconciliation

A reconciliation of the beginning and ending amount of the Company’s total gross unrecognized tax benefits was as follows (in thousands):

	As of April 30,
	2021		2020
Balance as of May 1	$	4,048	$	3,037
Increases for tax positions related to the current year	1,285		1,011
Balance as of April 30	$	5,333	$	4,048