v2.4.1.9

Note 10 - Commitments and Contingencies (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 9 Months Ended | 0 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 10, 2014 | Mar. 06, 2012 | Apr. 26, 2011 | Oct. 31, 2014 | Jun. 02, 2014 | May 30, 2014 | May 15, 2014 | May 16, 2014 | Feb. 04, 2014 | Jan. 31, 2013 | Jul. 31, 2014 | Feb. 29, 2012 | Sep. 02, 2011 | May 13, 2011 | Apr. 16, 2013
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  |  | 6,250,000 us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction |  |  |  |  |  |  |  |  |  |  |
Legal Contingency Damage Seeking Value | $ 17,000,000 cmro_LegalContingencyDamageSeekingvalue |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  | 1,200,000 us-gaap_LossContingencyDamagesSoughtValue |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency Amount Claimed for Recovery of Damages |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,900,000 cmro_LossContingencyAmountClaimedForRecoveryOfDamages |
Former Gain Contingency, Recognized in Current Period |  |  |  |  |  |  |  |  |  |  | 7,600,000 us-gaap_FormerGainContingencyRecognizedInCurrentPeriod |  |  |  |
Number of Patents Relating to Power Technology |  |  |  |  |  |  |  |  |  |  |  |  | 5 cmro_NumberOfPatentsRelatingToPowerTechnology |  |
Number of Comaro Patents |  |  |  |  |  |  |  |  |  |  |  | 5 cmro_NumberOfComaroPatents |  |  |
Damages Sought in Lawsuit |  | 2,500,000 cmro_DamagesSoughtInLawsuit |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Liability, Current and Noncurrent |  |  |  | 0 us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent |  |  |  |  |  |  |  |  |  |  |
Additional Damages Sought [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain Contingency, Unrecorded Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 us-gaap_GainContingencyUnrecordedAmount / us-gaap_StatementScenarioAxis = cmro_AdditionalDamagesSoughtMember
New Ownership Percentage [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  | 49.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_StatementScenarioAxis = cmro_NewOwnershipPercentageMember |  |  |  |  |  |  |  |  |  |  |
Previous Ownership Percentage [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  | 9.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_StatementScenarioAxis = cmro_PreviousOwnershipPercentageMember |  |  |  |  |  |  |  |  |  |  |
Chicony Power Technology Company Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  |  |  |  | 7,600,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember | 7,600,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember | 9,700,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember |  |  |  |  |  |
Previously Accrued Seeking Payments |  |  |  |  |  |  |  |  | 1,100,000 cmro_PreviouslyAccruedSeekingPayments / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  |  |  |  | 7,600,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember | 7,600,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember | 9,700,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember |  |  |  |  |  |
Proceeds from Legal Settlements |  |  |  |  | 3,600,000 us-gaap_ProceedsFromLegalSettlements / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember | 3,600,000 us-gaap_ProceedsFromLegalSettlements / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember |  | 4,000,000 us-gaap_ProceedsFromLegalSettlements / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember |  |  |  |  |  |  |
Number of Units Under Indemnity Agreement |  |  |  |  |  |  | 500,000 cmro_NumberOfUnitsUnderIndemnityagreement / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember |  |  |  |  |  |  |  |
Chicony Power Technology Company Ltd [Member] | Gross Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  |  |  |  |  |  | 10,800,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember / us-gaap_StatementScenarioAxis = cmro_GrossAmountMember |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  |  |  |  |  |  | 10,800,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember / us-gaap_StatementScenarioAxis = cmro_GrossAmountMember |  |  |  |  |  |
Cost of Sales [Member] | Product and Freight Costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation Settlement Noncash Recovery of Previously Incurred Costs |  |  |  |  |  |  |  |  |  | 1,400,000 cmro_LitigationSettlementNoncashRecoveryOfPreviouslyIncurredcosts / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember / us-gaap_StatementScenarioAxis = cmro_ProductAndFreightCostsMember |  |  |  |  |
Decrease in Cost Of Revenue Due to Settlement Agreement |  |  |  |  |  |  |  |  |  | $ 1,400,000 cmro_DecreaseInCostOfRevenueDueToSettlementAgreement / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember / us-gaap_StatementScenarioAxis = cmro_ProductAndFreightCostsMember |  |  |  |  |

X
- Definition The amount of damages sought in lawsuit. + References No definition available. + Details
Name: | cmro_DamagesSoughtInLawsuit
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents decrease in cost of revenue due to settlement agreement. + References No definition available. + Details
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Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The value (monetary amount) of the award the company seeks in the legal matter. + References No definition available. + Details
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Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents a settlement that involves no cash payments but allows the company to recover previously incurred costs and to discharge related net liabilities. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents loss contingency amount claimed for recovery of damages. + References No definition available. + Details
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Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents number of comaro patents. + References No definition available. + Details
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Namespace Prefix: | cmro_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents number of patents relating to power technology. + References No definition available. + Details
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Namespace Prefix: | cmro_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of units under indemnityagreement + References No definition available. + Details
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Namespace Prefix: | cmro_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Accrued liabilities for previous periods. + References No definition available. + Details
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Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Balance Type: | na
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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of gain recognized in the period that had been disclosed in prior periods as a contingent gain. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355 + Details
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Data Type: | xbrli:monetaryItemType
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X
- Definition The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The value (monetary amount) of the award the plaintiff seeks in the legal matter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Cash received for the settlement of litigation during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Data Type: | na
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- Details
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- Details
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- Details
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