XML 112 R96.htm IDEA: XBRL DOCUMENT
v3.25.3

Cost Reduction and Related Restructuring Activities - Narrative (Details) | 12 Months Ended |
--- | --- | ---
Jul. 31, 2025 USD ($) employee | Jul. 31, 2024 USD ($) employee | Jul. 31, 2023 USD ($) | Nov. 10, 2025 employee
Segment Reporting Information [Line Items] |  |  |  |
Severance costs | $ 47,000,000 | $ 2,616,000 | $ 3,872,000 |
Payments for severance cost | (3,900,000) |  |  |
Severance liability | $ 762,000 | $ 1,029,000 |  |
Restructuring and related cost, number of positions eliminated, period percent | 23.00% |  |  |
Entity number of employees | employee | 1,385 | 1,676 |  |
Subsequent Event |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Entity number of employees | employee |  |  |  | 1,347
Selling, general and administrative expenses |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Severance costs | $ 3,633,000 |  |  |

X
- Definition Payments For Severance Cost + References No definition available. + Details
Name: | cmtl_PaymentsForSeveranceCost
Namespace Prefix: | cmtl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Severance Liability + References No definition available. + Details
Name: | cmtl_SeveranceLiability
Namespace Prefix: | cmtl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of persons employed by the Entity + References No definition available. + Details
Name: | dei_EntityNumberOfEmployees
Namespace Prefix: | dei_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s). + References No definition available. + Details
Name: | us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedPeriodPercent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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 + Details
Name: | us-gaap_SeveranceCosts1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |