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       6,250,000us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction                      
Legal Contingency Damage Seeking Value $ 17,000,000cmro_LegalContingencyDamageSeekingvalue                            
Loss Contingency, Damages Sought, Value     1,200,000us-gaap_LossContingencyDamagesSoughtValue                        
Loss Contingency Amount Claimed for Recovery of Damages                           4,900,000cmro_LossContingencyAmountClaimedForRecoveryOfDamages  
Former Gain Contingency, Recognized in Current Period                     7,600,000us-gaap_FormerGainContingencyRecognizedInCurrentPeriod        
Number of Patents Relating to Power Technology                         5cmro_NumberOfPatentsRelatingToPowerTechnology    
Number of Comaro Patents                       5cmro_NumberOfComaroPatents      
Damages Sought in Lawsuit   2,500,000cmro_DamagesSoughtInLawsuit                          
Deferred Compensation Liability, Current and Noncurrent       0us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent                      
Additional Damages Sought [Member]                              
Commitments and Contingencies Disclosure [Abstract]                              
Gain Contingency, Unrecorded Amount                             15,000,000us-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             7,600,000us-gaap_LitigationSettlementAmount
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
7,600,000us-gaap_LitigationSettlementAmount
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
9,700,000us-gaap_LitigationSettlementAmount
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
           
Previously Accrued Seeking Payments                 1,100,000cmro_PreviouslyAccruedSeekingPayments
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
           
Litigation Settlement, Amount             7,600,000us-gaap_LitigationSettlementAmount
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
7,600,000us-gaap_LitigationSettlementAmount
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
9,700,000us-gaap_LitigationSettlementAmount
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
           
Proceeds from Legal Settlements         3,600,000us-gaap_ProceedsFromLegalSettlements
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
3,600,000us-gaap_ProceedsFromLegalSettlements
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
  4,000,000us-gaap_ProceedsFromLegalSettlements
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
             
Number of Units Under Indemnity Agreement             500,000cmro_NumberOfUnitsUnderIndemnityagreement
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
               
Chicony Power Technology Company Ltd [Member] | Gross Amount [Member]                              
Commitments and Contingencies Disclosure [Abstract]                              
Litigation Settlement, Amount                 10,800,000us-gaap_LitigationSettlementAmount
/ us-gaap_LitigationCaseAxis
= cmro_ChiconyPowerTechnologyCompanyLtdMember
/ us-gaap_StatementScenarioAxis
= cmro_GrossAmountMember
           
Litigation Settlement, Amount                 10,800,000us-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                   1,400,000cmro_LitigationSettlementNoncashRecoveryOfPreviouslyIncurredcosts
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
/ us-gaap_StatementScenarioAxis
= cmro_ProductAndFreightCostsMember
         
Decrease in Cost Of Revenue Due to Settlement Agreement                   $ 1,400,000cmro_DecreaseInCostOfRevenueDueToSettlementAgreement
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
/ us-gaap_StatementScenarioAxis
= cmro_ProductAndFreightCostsMember