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Segment Information (Details) (USD $) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2015 operating_segment | Apr. 30, 2014 operating_segment | Apr. 30, 2015 operating_segment | Apr. 30, 2014 operating_segment | Jul. 31, 2014 operating_segment
Segment Reporting Information [Line Items] |  |  |  |  |
Number of reportable operating segments | 3 us-gaap_NumberOfOperatingSegments | 3 us-gaap_NumberOfOperatingSegments | 3 us-gaap_NumberOfOperatingSegments | 3 us-gaap_NumberOfOperatingSegments | 3 us-gaap_NumberOfOperatingSegments
Net sales | $ 71,633,000 us-gaap_SalesRevenueNet | $ 88,905,000 us-gaap_SalesRevenueNet | $ 229,826,000 us-gaap_SalesRevenueNet | $ 257,772,000 us-gaap_SalesRevenueNet |
Operating income (loss) | 7,160,000 us-gaap_OperatingIncomeLoss | 10,567,000 us-gaap_OperatingIncomeLoss | 26,002,000 us-gaap_OperatingIncomeLoss | 31,838,000 us-gaap_OperatingIncomeLoss |
Interest income and other (expense) | 107,000 us-gaap_InvestmentIncomeInterest | 256,000 us-gaap_InvestmentIncomeInterest | 281,000 us-gaap_InvestmentIncomeInterest | 757,000 us-gaap_InvestmentIncomeInterest |
Interest expense (income) | 72,000 us-gaap_InterestExpense | 1,993,000 us-gaap_InterestExpense | 406,000 us-gaap_InterestExpense | 6,009,000 us-gaap_InterestExpense |
Depreciation and amortization | 4,471,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense | 4,280,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense | 13,220,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense | 12,843,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense |
Expenditure for long-lived assets, including intangibles | 688,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 1,112,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 2,833,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 4,536,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
Total assets | 473,795,000 us-gaap_Assets | 633,605,000 us-gaap_Assets | 473,795,000 us-gaap_Assets | 633,605,000 us-gaap_Assets | 473,852,000 us-gaap_Assets
Amortization of stock-based compensation | 1,244,000 us-gaap_AllocatedShareBasedCompensationExpense | 1,070,000 us-gaap_AllocatedShareBasedCompensationExpense | 3,642,000 us-gaap_AllocatedShareBasedCompensationExpense | 3,086,000 us-gaap_AllocatedShareBasedCompensationExpense |
Telecommunications Transmission Segment |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales | 45,642,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 61,235,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 150,865,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 172,121,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember |
Operating income (loss) | 7,283,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 10,353,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 26,498,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 29,550,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember |
Interest income and other (expense) | (6,000)us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 21,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | (61,000)us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 9,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember |
Interest expense (income) | 72,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 62,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 208,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 182,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember |
Depreciation and amortization | 2,198,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 2,193,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 6,607,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 6,683,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember |
Expenditure for long-lived assets, including intangibles | 403,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 916,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 1,683,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 3,830,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember |
Total assets | 237,811,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 251,156,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 237,811,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember | 251,156,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSegmentMember |
RF Microwave Amplifiers Segment |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales | 19,676,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 22,499,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 60,086,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 64,737,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember |
Operating income (loss) | 1,254,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 1,445,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 3,286,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 3,113,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember |
Interest income and other (expense) | 6,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | (14,000)us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | (19,000)us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | (32,000)us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember |
Interest expense (income) | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember |
Depreciation and amortization | 940,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 939,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 2,725,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 2,827,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember |
Expenditure for long-lived assets, including intangibles | 117,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 158,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 791,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 415,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember |
Total assets | 95,217,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 89,177,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 95,217,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember | 89,177,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_RFMicrowaveAmplifiersSegmentMember |
Mobile Data Communications Segment |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales | 6,315,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 5,171,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 18,875,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 20,914,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember |
Operating income (loss) | 2,642,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 2,318,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 8,218,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 9,697,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember |
Interest income and other (expense) | 4,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 3,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 10,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 9,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember |
Interest expense (income) | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | (3,000)us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember |
Depreciation and amortization | 78,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 62,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 220,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 199,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember |
Expenditure for long-lived assets, including intangibles | 149,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 38,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 293,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 284,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember |
Total assets | 6,213,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 5,811,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 6,213,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember | 5,811,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = cmtl_MobileDataCommunicationsSegmentMember |
Unallocated |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Operating income (loss) | (4,019,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | (3,549,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | (12,000,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | (10,522,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Interest income and other (expense) | 103,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 246,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 351,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 771,000 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Interest expense (income) | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 1,931,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 198,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 5,830,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Depreciation and amortization | 1,255,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 1,086,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 3,668,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 3,134,000 cmtl_SegmentReportingInformationDepreciationAndAmortizationExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Expenditure for long-lived assets, including intangibles | 19,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 66,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 7,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Total assets | 134,554,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 287,461,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 134,554,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 287,461,000 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Amortization of stock-based compensation | 1,244,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 1,070,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 3,642,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 3,086,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Expenses related to strategic alternatives analysis | 0 cmtl_ExpensesRelatedToStrategicAlternativesAnalysis / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 0 cmtl_ExpensesRelatedToStrategicAlternativesAnalysis / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 585,000 cmtl_ExpensesRelatedToStrategicAlternativesAnalysis / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | 0 cmtl_ExpensesRelatedToStrategicAlternativesAnalysis / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember |
Telecommunications Transmission Sales to RF Microwave Amplifiers |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Intersegment sales | 824,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSalesToRfMicrowaveAmplifiersMember | 521,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSalesToRfMicrowaveAmplifiersMember | 1,833,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSalesToRfMicrowaveAmplifiersMember | 1,286,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionSalesToRfMicrowaveAmplifiersMember |
Telecommunications Transmissions Sales to Mobile Data Communications |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Intersegment sales | 127,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionsSalesToMobileDataCommunicationsMember | 41,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionsSalesToMobileDataCommunicationsMember | 464,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionsSalesToMobileDataCommunicationsMember | 213,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_TelecommunicationsTransmissionsSalesToMobileDataCommunicationsMember |
Rf Microwave Amplifiers Sales To Telecommunications Transmission |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Intersegment sales | $ 0 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_RfMicrowaveAmplifiersSalesToTelecommunicationsTransmissionMember | $ 3,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_RfMicrowaveAmplifiersSalesToTelecommunicationsTransmissionMember | $ 0 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_RfMicrowaveAmplifiersSalesToTelecommunicationsTransmissionMember | $ 137,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = cmtl_RfMicrowaveAmplifiersSalesToTelecommunicationsTransmissionMember |

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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 No definition available. + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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