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Subordinated Credit Facility (Details) - USD ($) |  | 3 Months Ended
--- | --- | ---
Oct. 17, 2024 | Oct. 31, 2024 | Oct. 31, 2023
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, derivative liability | $ 3,318,000 | $ 3,566,000 |
Line of credit facility, noncash expense |  | 248,000 |
Line of credit facility, financing fees |  | 1,761,000 |
Interest expense related to credit facility |  | 248,000 |
Credit Facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | $ 25,000,000 |  |
Line of credit facility, term | 90 days |  |
Interest expense related to credit facility |  | $ 9,252,000 | $ 4,910,000
Unsecured Debt | Credit Facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | $ 25,000,000 |  |
Line of credit facility, interest rate | 16.00% |  |
Borrowing rate, increase | 2.00% |  |
Unsecured Debt | Credit Facility | First Anniversary |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, interest rate | 33.00% |  |
Unsecured Debt | Credit Facility | Second Anniversary |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, interest rate | 50.00% |  |
Unsecured Debt | Credit Facility | Third Anniversary |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, interest rate | 75.00% |  |

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- Definition Interest expense related to the credit facility for the period, including undrawn line fees and amortization of deferred financing costs. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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- Definition Line of Credit Facility, Derivative Liability + References No definition available. + Details
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Namespace Prefix: | cmtl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Line of Credit Facility, Financing Fees + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Line of Credit Facility, Interest Rate + References No definition available. + Details
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- Definition Line of Credit Facility, Interest Rate Increase (Decrease) + References No definition available. + Details
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- Definition Line of Credit Facility, Noncash Expense + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Line of Credit Facility, Term + References No definition available. + Details
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- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Details
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- Details
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- Details
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- Details
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