Income Taxes - Schedule of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2025	Jul. 31, 2024
Deferred tax assets:
Net operating loss carryforwards	$ 85,847	$ 61,204
Federal tax credits, net of uncertain tax position	16,910	6,145
Capitalized Sec. 174 research and experimental expenditures	29,117	3,121
Stock-based compensation	2,354	2,486
Depreciation	340	286
Reserves and accruals	647	249
Charitable contributions	346	141
Related party interest	853
Disallowed interest expense	1,008
Gross deferred tax assets	137,422	73,632
Less valuation allowance	(128,403)	(71,275)
Total deferred tax assets, net of valuation allowance	9,019	2,357
Deferred tax liabilities:
Unrealized gain	(199)	(2,327)
Intangible assets	(8,958)	(30)
Total deferred tax liabilities:	(9,157)	(2,357)
Deferred tax liability, net	$ (138)