Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2022	Oct. 31, 2021
Income Taxes
Deferred tax assets, Compensation and benefit accruals	$ 8,523	$ 7,891
Deferred tax assets, Bad debt and other allowances	2,453	1,081
Deferred tax assets, Capital loss and tax credit carry-forwards	14,310	15,191
Deferred tax assets, Net operating losses (domestic and foreign)	123,825	113,733
Deferred tax assets, Deferred license revenue	1,548	1,885
Deferred tax assets, Accumulated depreciation	20,229	12,379
Deferred tax assets, Grant revenue	475	609
Deferred tax assets, Excess business interest	10,424	9,695
Deferred tax assets Operating lease liabilities	2,085	2,211
Deferred tax assets, Gross	183,872	164,675
Deferred tax assets, Valuation allowance	(180,048)	(160,530)
Deferred tax assets after valuation allowance	3,824	4,145
Deferred tax liability, In process research and development	(2,475)	(2,510)
Deferred tax liability Right of use assets	(1,809)	(1,964)
Deferred Tax Liability, Net	$ (460)	$ (329)