v2.4.0.6

Note 3 - Customer and Supplier Concentrations (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Jan. 31, 2013 | Jan. 31, 2012
Number of Significant Suppliers | one |
Number of Suppliers | 4 | 1
Pillsbury Winthrop Shaw Pittman LLP [Member] |  |
Legal Fees (in Dollars) | 0.3 |
EDAC (Member) |  |
Decrease in Cost of Revenue Due to Settlement Agreement (in Dollars) | 1.4 |

X
- Definition Decrease in cost of revenue due to settlement agreement. + References No definition available. + Details
Name: | cmro_DecreaseInCostOfRevenueDueToSettlementAgreement
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of Significant Suppliers + References No definition available. + Details
Name: | cmro_NumberofSignificantSuppliers
Namespace Prefix: | cmro_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of suppliers. + References No definition available. + Details
Name: | cmro_NumberOfSuppliers
Namespace Prefix: | cmro_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
Name: | us-gaap_LegalFees
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration