v2.4.0.8

Note 12 - Employee Benefit Plans (Details) (USD $) | 12 Months Ended
--- | ---
Jan. 31, 2014 | Jan. 31, 2013
Note 12 - Employee Benefit Plans (Details) [Line Items] |  |
Number of Days |  | 30 days
Years of Age |  | 18 years
Defined Contribution Plans Vesting Period |  | 4 years
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 21,000 | $ 33,000
Defined Benefit Plan, Contributions by Employer | $ 21,000 | $ 14,000
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 100.00% |
Defined Contribution Plan, Percent of Employee Contribution | 5.00% |
Minimum [Member] |  |
Note 12 - Employee Benefit Plans (Details) [Line Items] |  |
Defined Contribution Plan, Employee Contribution |  | 1.00%
Maximum [Member] |  |
Note 12 - Employee Benefit Plans (Details) [Line Items] |  |
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent |  | 20.00%

X
- Definition Defined Contribution Plan, Employee Contribution + References No definition available. + Details
Name: | cmro_DefinedContributionPlanEmployeeContribution
Namespace Prefix: | cmro_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Contribution Plan, Percent of Employee Contribution + References No definition available. + Details
Name: | cmro_DefinedContributionPlanPercentofEmployeeContribution
Namespace Prefix: | cmro_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined contribution plans vesting period. + References No definition available. + Details
Name: | cmro_DefinedContributionPlansVestingPeriod
Namespace Prefix: | cmro_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | cmro_Note12EmployeeBenefitPlansDetailsLineItems
Namespace Prefix: | cmro_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Years of Age + References No definition available. + Details
Name: | cmro_YearsofAge
Namespace Prefix: | cmro_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase in the fair value of plan assets from contributions made by the employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration