Represents share based compensation arrangement by share based payment award percentage of option condition.

No definition available.

Name:	cmro_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOptioneeCondition
Namespace Prefix:	cmro_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents share based compensation arrangement by share based payment award purchase price of common stock percent condition.

+ References

No definition available.

+ Details

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Namespace Prefix:	cmro_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents share based compensation determination of expiration period specified percentage.

+ References

No definition available.

+ Details

Name:	cmro_ShareBasedCompensationDeterminationOfExpirationPeriodSpecifiedPercentage
Namespace Prefix:	cmro_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents share based compensation options maximum expiration period following grant date.

+ References

No definition available.

+ Details

Name:	cmro_ShareBasedCompensationOptionsMaximumExpirationPeriodFollowingGrantDate
Namespace Prefix:	cmro_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents share based compensation options maximum expiration period following grant date for specified percentage ownership.

+ References

No definition available.

+ Details

Name:	cmro_ShareBasedCompensationOptionsMaximumExpirationPeriodFollowingGrantDateForSpecifiedPercentageOwnership
Namespace Prefix:	cmro_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares under options that are expected to be cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	cmro_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=cmro_PriorEmployeePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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- Details

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Note 8 - Stock Compensation (Details Textual) - USD ($)		12 Months Ended
Note 8 - Stock Compensation (Details Textual) - USD ($)	Aug. 17, 2016	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2013	Jul. 31, 2011	Jun. 30, 2008	Dec. 31, 2005	May 31, 2005
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized		2,675,000
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent		100.00%
Share Based Compensation Arrangement by Share Based Payment Award Percentage of Optionee Condition		10.00%
Share Based Compensation Arrangement by Share Based Payment Award Purchase Price of Common Stock Percent Condition		110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number		1,100,000	950,000	600,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		396,189	350,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Estimated Expected Forfeitures		0
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		$ 20,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		270 days
Share Price		$ 0.07	$ 0.11
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number		760,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price		$ 0.44
Common Stock, Capital Shares Reserved for Future Issuance		323,535
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value		$ 0	$ 0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		0	0
Prior Employee Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized									825,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number					25,000
Share Based Compensation Options Maximum Expiration Period Following Grant Date		10 years 6 days
Share Based Compensation Options Maximum Expiration Period Following Grant Date for Specified Percentage Ownership		5 years
Share Based Compensation Determination of Expiration Period Specified Percentage		10.00%
Equity Incentive Plan 2005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized							1,100,000	450,000
Equity Incentive Plan 2011 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized						750,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	500,000
Equity Incentive Plan 2005 And 2011 [Member]
Share Based Compensation Options Maximum Expiration Period Following Grant Date		10 years
Share Based Compensation Options Maximum Expiration Period Following Grant Date for Specified Percentage Ownership		5 years
Share Based Compensation Determination of Expiration Period Specified Percentage		10.00%