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Radyne Acquisition-Related Restructuring Plan - Activity of Facility Related Exit Costs (Details) (USD $) | 3 Months Ended | 9 Months Ended | 78 Months Ended |
--- | --- | --- | --- | ---
Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2015 | Jul. 31, 2008
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Present value of estimated facility-related exit costs, beginning balance |  |  | $ 3,773,000 cmtl_BusinessAcquisitionRestructuringCostsFacilityRelatedExitCosts |  | $ 2,100,000 cmtl_BusinessAcquisitionRestructuringCostsFacilityRelatedExitCosts | $ 2,100,000 cmtl_BusinessAcquisitionRestructuringCostsFacilityRelatedExitCosts
Cash payments made |  |  | (829,000)cmtl_RestructuringReserveCashPaymentsMade |  | (7,225,000)cmtl_RestructuringReserveCashPaymentsMade |
Cash payments received |  |  | 967,000 cmtl_RestructuringReserveCashPaymentsReceived |  | 7,953,000 cmtl_RestructuringReserveCashPaymentsReceived |
Accreted interest recorded | 71,000 cmtl_RestructuringAndRelatedCostsInterestAccretedOnFacilityRelatedExitCosts | 62,000 cmtl_RestructuringAndRelatedCostsInterestAccretedOnFacilityRelatedExitCosts | 206,000 cmtl_RestructuringAndRelatedCostsInterestAccretedOnFacilityRelatedExitCosts | 182,000 cmtl_RestructuringAndRelatedCostsInterestAccretedOnFacilityRelatedExitCosts | 1,289,000 cmtl_RestructuringAndRelatedCostsInterestAccretedOnFacilityRelatedExitCosts |
Present value of estimated facility-related exit costs, ending balance | 4,117,000 cmtl_BusinessAcquisitionRestructuringCostsFacilityRelatedExitCosts |  | 4,117,000 cmtl_BusinessAcquisitionRestructuringCostsFacilityRelatedExitCosts |  | 4,117,000 cmtl_BusinessAcquisitionRestructuringCostsFacilityRelatedExitCosts | 2,100,000 cmtl_BusinessAcquisitionRestructuringCostsFacilityRelatedExitCosts
Amount recorded as accrued expenses and other current liabilities in the Condensed Consolidated Balance Sheet | 467,000 us-gaap_RestructuringReserveCurrent |  | 467,000 us-gaap_RestructuringReserveCurrent |  | 467,000 us-gaap_RestructuringReserveCurrent |
Amount recorded as other liabilities in the Condensed Consolidated Balance Sheet | $ 3,650,000 us-gaap_RestructuringReserveNoncurrent |  | $ 3,650,000 us-gaap_RestructuringReserveNoncurrent |  | $ 3,650,000 us-gaap_RestructuringReserveNoncurrent |

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- Definition Amount accrued to cover estimated present value of facility exit costs related to noncancellable lease obligations assumed in a business combination, net of the present value of estimated sublease income. + References No definition available. + Details
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- Definition The amount recorded in interest expense for the interest accreted on facility-related exit costs. + References No definition available. + Details
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- Definition Cash paid in the period in connection with non-cancellable lease obligation related to restructuring plan. + References No definition available. + Details
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- Definition Cash received on sublease associated with non-cancellable lease obligation in connection with restructuring plan. + References No definition available. + Details
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- Definition Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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- Definition Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Paragraph Question 4 + Details
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- Details
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