Segment Information - Narrative (Details)	3 Months Ended			9 Months Ended
	Apr. 30, 2025 USD ($) ft²	Oct. 31, 2024 USD ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2025 USD ($) ft²	Apr. 30, 2024 USD ($)
Segment Reporting Information [Line Items]
Consolidated total	$ 0			$ 280,000
Chandler, Arizona
Segment Reporting Information [Line Items]
Area of property (in sq ft) | ft²	146,000			146,000
UHP | Satellite and Space Communications
Segment Reporting Information [Line Items]
Goodwill, impairment loss		$ 79,555,000
Unallocated
Segment Reporting Information [Line Items]
Unallocated amounts	$ 3,438,000		$ 2,206,000	$ 9,431,000	$ 6,396,000
Consolidated total			880,000		3,228,000
Operating Segments | Satellite and Space Communications
Segment Reporting Information [Line Items]
Unallocated amounts	$ 882,000		549,000	4,683,000	2,793,000
Consolidated total			$ 880,000	$ 280,000	$ 3,228,000
Operating Segments | Satellite and Space Communications | Cost of sales
Segment Reporting Information [Line Items]
Unallocated amounts		$ 11,369,000