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Income Taxes - Cash Paid for Income Taxes (Details) - USD ($)	12 Months Ended
	Jul. 31, 2026	Jul. 31, 2025
Income Tax Paid, by Individual Jurisdiction [Line Items]
Total	$ (163,000)	$ 1,876,000
Continuing Operations
Income Tax Paid, by Individual Jurisdiction [Line Items]
Total	(262,000)
Continuing Operations \| California
Income Tax Paid, by Individual Jurisdiction [Line Items]
State:	(54,000)
Continuing Operations \| Connecticut
Income Tax Paid, by Individual Jurisdiction [Line Items]
State:	(129,000)
Continuing Operations \| Pennsylvania
Income Tax Paid, by Individual Jurisdiction [Line Items]
State:	124,000
Continuing Operations \| Texas
Income Tax Paid, by Individual Jurisdiction [Line Items]
State:	85,000
Continuing Operations \| Virginia
Income Tax Paid, by Individual Jurisdiction [Line Items]
State:	(78,000)
Continuing Operations \| Other
Income Tax Paid, by Individual Jurisdiction [Line Items]
State:	(121,000)
Continuing Operations \| Australia
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign:	60,000
Continuing Operations \| Russia
Income Tax Paid, by Individual Jurisdiction [Line Items]
Foreign:	$ (149,000)