v2.4.1.9

Note 6 - Customer and Supplier Concentrations - Supplier Concentration Risk Accounts Payable (Details) (USD $) | Oct. 31, 2014 | Jan. 31, 2014
--- | --- | ---
Accounts payable | $ 746,000 us-gaap_AccountsPayableCurrent | $ 4,363,000 us-gaap_AccountsPayableCurrent
Total gross accounts payable | 100.00%cmro_AccountsPayableCurrentPercentage | 100.00%cmro_AccountsPayableCurrentPercentage
Chicony Power Technology, Co. Ltd. | 58.00%cmro_MajorSuppliersAccountsPayableCurrentPercentage | 70.00%cmro_MajorSuppliersAccountsPayableCurrentPercentage
Chicony Power Technology, Co. Ltd. | 432,000 cmro_MajorSuppliersAccountsPayableCurrent | 3,053,000 cmro_MajorSuppliersAccountsPayableCurrent
Chicony Power Technology Company Ltd [Member] |  |
Chicony Power Technology, Co. Ltd. | 0.00%cmro_MajorSuppliersAccountsPayableCurrentPercentage / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember | 25.00%cmro_MajorSuppliersAccountsPayableCurrentPercentage / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember
Chicony Power Technology, Co. Ltd. |  | 1,100,000 cmro_MajorSuppliersAccountsPayableCurrent / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_ChiconyPowerTechnologyCompanyLtdMember
Pillsbury Winthrop Shaw Pittman L L P [Member] |  |
Chicony Power Technology, Co. Ltd. | 58.00%cmro_MajorSuppliersAccountsPayableCurrentPercentage / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_PillsburyWinthropShawPittmanLLPMember | 45.00%cmro_MajorSuppliersAccountsPayableCurrentPercentage / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_PillsburyWinthropShawPittmanLLPMember
Chicony Power Technology, Co. Ltd. | $ 432,000 cmro_MajorSuppliersAccountsPayableCurrent / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_PillsburyWinthropShawPittmanLLPMember | $ 1,953,000 cmro_MajorSuppliersAccountsPayableCurrent / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_PillsburyWinthropShawPittmanLLPMember

X
- Definition The percentage of current accounts payable. + References No definition available. + Details
Name: | cmro_AccountsPayableCurrentPercentage
Namespace Prefix: | cmro_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of current accounts payable that is due to major suppliers. + References No definition available. + Details
Name: | cmro_MajorSuppliersAccountsPayableCurrent
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The current percentage of accounts payable that is due to major suppliers. + References No definition available. + Details
Name: | cmro_MajorSuppliersAccountsPayableCurrentPercentage
Namespace Prefix: | cmro_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AccountsPayableCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=cmro_ChiconyPowerTechnologyCompanyLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=cmro_PillsburyWinthropShawPittmanLLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |