Cornerstone Restructuring, Cornerstone Acquisition, and Rp Finance Consolidation - Schedule of Assets and Liabilities Recognized (Details) - USD ($) $ in Thousands	Jul. 31, 2025	Jul. 31, 2024
Assets acquired and liabilities assumed
Cash and cash equivalents	$ 2,756
Prepaid expenses and other current assets	121
Property and equipment	19
Other assets	48
Acquired IPR&D	89,861	$ 89,900
Accounts payable	(2,006)
Accrued expenses	(1,188)
Series C Convertible Notes, short-term portion	(614)
Due to related parties	(1,289)
Other current liabilities	(28)
Series C Convertible Notes, long-term portion	(70)
Creditor payable, noncurrent	(2,745)
Amended RPF Line of Credit	(15,336)
Other liabilities	(20)
Total	69,509
Consolidation of RP Finance [Member] | VIE [Member]
Assets acquired and liabilities assumed
Investments - Cornerstone common stock	4,931
Due from Cornerstone - Amended RPF Line of Credit	15,336
Total	$ 20,267