v2.4.1.9

Note 9 - Fair Value Measurements - Changes in Fair Value of Level 3 Financial Instruments (Details) (Fair Value, Inputs, Level 3 [Member], USD $) In Thousands, unless otherwise specified | 9 Months Ended
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Oct. 31, 2014
Broadwood warrants | $ 2,520 us-gaap_DerivativeLiabilities
Broadwood warrants | (226)cmro_ChangeInEstimatedFairValueRecognizedInResultsOfOperations
Broadwood warrants | (2,294)cmro_ChangeinEstimatedFairValueRecognizedInEquityDueToReplacement
Warrant [Member] | Broadwood Partners, L.P. [Member] |
Broadwood warrants | 2,426 us-gaap_DerivativeLiabilities / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FinancialInstrumentAxis = us-gaap_WarrantMember / dei_LegalEntityAxis = cmro_BroadwoodPartnersLPMember
Broadwood warrants | (132)cmro_ChangeInEstimatedFairValueRecognizedInResultsOfOperations / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FinancialInstrumentAxis = us-gaap_WarrantMember / dei_LegalEntityAxis = cmro_BroadwoodPartnersLPMember
Broadwood warrants | (2,294)cmro_ChangeinEstimatedFairValueRecognizedInEquityDueToReplacement / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FinancialInstrumentAxis = us-gaap_WarrantMember / dei_LegalEntityAxis = cmro_BroadwoodPartnersLPMember
Conversion Feature [Member] | Elkhorn Partners Limited Partnership [Member] |
Broadwood warrants | 94 us-gaap_DerivativeLiabilities / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FinancialInstrumentAxis = cmro_ConversionFeatureMember / dei_LegalEntityAxis = cmro_ElkhornPartnersLimitedPartnershipMember
Broadwood warrants | $ (94)cmro_ChangeInEstimatedFairValueRecognizedInResultsOfOperations / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FinancialInstrumentAxis = cmro_ConversionFeatureMember / dei_LegalEntityAxis = cmro_ElkhornPartnersLimitedPartnershipMember

X
- Definition The amount of change estimated to be recognized in equity due to replacement. + References No definition available. + Details
Name: | cmro_ChangeinEstimatedFairValueRecognizedInEquityDueToReplacement
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the change in the estimated fair value of financial instruments that is recognized in results of operations. + References No definition available. + Details
Name: | cmro_ChangeInEstimatedFairValueRecognizedInResultsOfOperations
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13495-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226008-175313 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant