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Cost Reduction - Narrative (Details)	12 Months Ended
	Jul. 31, 2024 USD ($) segment	Jul. 31, 2023 USD ($)
Restructuring and Related Activities [Abstract]
Number of operating segments | segment	2
Segment Reporting Information [Line Items]
Number of operating segments | segment	2
Severance costs	$ 2,616,000	$ 3,872,000
Payments for severance cost	3,139,000	2,320,000
Severance liability	1,029,000	$ 1,552,000
Satellite and Space Communications
Segment Reporting Information [Line Items]
Severance costs	1,989,000
Terrestrial and Wireless Network Segment
Segment Reporting Information [Line Items]
Severance costs	1,220,000
Unallocated Segment
Segment Reporting Information [Line Items]
Severance costs	$ 663,000

X

- Definition

Payments For Severance Cost

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- Definition

Severance Liability

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 49
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-49

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-18

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

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