Income Taxes (Details) - Schedule of Deferred Tax Assets and Liabilities - USD ($) $ in Thousands	Jul. 31, 2023	Jul. 31, 2022
Schedule Of Deferred Tax Assets And Liabilities Abstract
Net operating loss carryforwards	$ 17,852	$ 15,170
Unrealized gain/loss	30,236	31,850
Depreciation	(1)	1
R&D amortization	689
Reserves and accruals	237	236
Stock-based compensation	1,858	1,839
Gross deferred tax assets	50,871	49,096
Less valuation allowance	(50,871)	(49,096)
Total deferred tax assets
Total deferred tax liabilities
Deferred tax assets, net