v2.4.1.9

Note 6 - Customer and Supplier Concentrations - Supplier Concentration Risk Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified | Oct. 31, 2014 | Jan. 31, 2014
--- | --- | ---
Total gross accounts receivable due from suppliers | $ 122 cmro_AccountsReceivableDueFromSuppliersGrossCurrent | $ 128 cmro_AccountsReceivableDueFromSuppliersGrossCurrent
Total gross accounts receivable due from suppliers | 100.00%cmro_AccountsReceivableDueFromSuppliersGrossCurrentPercentage | 100.00%cmro_AccountsReceivableDueFromSuppliersGrossCurrentPercentage
Zheng Ge Electrical Company Ltd [Member] |  |
Zheng Ge Electrical Co., Ltd. | $ 122 cmro_MajorSuppliersAccountsReceivableGrossCurrent / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_ZhengGeElectricalCompanyLtdMember | $ 122 cmro_MajorSuppliersAccountsReceivableGrossCurrent / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_ZhengGeElectricalCompanyLtdMember
Zheng Ge Electrical Co., Ltd. | 100.00%cmro_MajorSuppliersAccountsReceivableGrossPercentage / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_ZhengGeElectricalCompanyLtdMember | 95.00%cmro_MajorSuppliersAccountsReceivableGrossPercentage / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_ZhengGeElectricalCompanyLtdMember

X
- Definition The amount of accounts receivable that is currently due from suppliers. + References No definition available. + Details
Name: | cmro_AccountsReceivableDueFromSuppliersGrossCurrent
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The amount of accounts receivable that is due from major suppliers. + References No definition available. + Details
Name: | cmro_MajorSuppliersAccountsReceivableGrossCurrent
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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