Income Taxes (Tables)

12 Months Ended

Oct. 31, 2017

Schedule of Components of Loss Before Income Taxes

The components of loss before income taxes for the years ended October 31, 2017, 2016, and 2015 were as follows (in thousands):

	2017			2016			2015
U.S.	$	(49,723	)	$	(46,708	)	$	(26,459	)
Foreign		(4,136	)		(3,981	)		(2,951	)
Loss before income taxes	$	(53,859	)	$	(50,689	)	$	(29,410	)

Schedule of Reconciliation of Federal Statutory Income Tax Rate To Effective Income Tax Rate

The reconciliation of the federal statutory income tax rate to our effective income tax rate for the years ended October 31, 2017, 2016 and 2015 was as follows:

	2017			2016			2015
Statutory federal income tax rate		(34.0	)%		(34.0	)%		(34.0	)%
Increase (decrease) in income taxes resulting from:
State taxes, net of Federal benefits		(1.3	)%		(0.2	)%		(0.1	)%
Foreign withholding tax		0.1	%		1.1	%		0.9	%
Net operating loss adjustment and true-ups		(4.6	)%		3.3	%		4.7	%
Nondeductible expenditures		1.9	%		0.9	%		0.1	%
Change in state tax rate		(0.8	)%		(0.3	)%		1.6	%
Other, net		0.6	%		0.2	%		0.4	%
Valuation allowance		38.2	%		30.1	%		27.3	%
Effective income tax rate		0.1	%		1.1	%		0.9	%

Schedule of Deferred Tax Assets and Liabilities

Our deferred tax assets and liabilities consisted of the following at October 31, 2017 and 2016 (in thousands):

	2017			2016
Deferred tax assets:
Compensation and benefit accruals	$	11,158		$	9,625
Bad debt and other allowances		605			1,276
Capital loss and tax credit carry-forwards		13,398			12,772
Net operating losses (domestic and foreign)		282,022			265,799
Deferred license revenue		7,850			8,616
Inventory valuation allowances		111			278
Accumulated depreciation		5,095			4,653
Grant revenue		1,522			1,327
Gross deferred tax assets:		321,761			304,346
Valuation allowance		(321,761	)		(304,346	)
Deferred tax assets after valuation allowance		—			—
Deferred tax liability:
In process research and development		(3,377	)		(3,377	)
Net deferred tax liability	$	(3,377	)	$	(3,377	)