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	$ 746,000us-gaap_AccountsPayableCurrent	$ 4,363,000us-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.	432,000cmro_MajorSuppliersAccountsPayableCurrent	3,053,000cmro_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.		1,100,000cmro_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.	$ 432,000cmro_MajorSuppliersAccountsPayableCurrent / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = cmro_PillsburyWinthropShawPittmanLLPMember	$ 1,953,000cmro_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: