v3.5.0.1

Note 4 - Stock Awards Outstanding (Details)	3 Months Ended
	Apr. 30, 2016 $ / shares shares
Range 1 [Member]
Range of Exercise/Grant Prices (in dollars per share) | $ / shares	$ 0.14
Number Outstanding (in shares) | shares	200,000
Weighted-Ave. Remaining Contractual Life	9 years 51 days
Number Exercisable (in shares) | shares	0
Weighted-Ave. Exercise Price, Exercisable (in dollars per share) | $ / shares	$ 0.14
Range 2 [Member]
Range of Exercise/Grant Prices (in dollars per share) | $ / shares	$ 0.16
Number Outstanding (in shares) | shares	100,000
Weighted-Ave. Remaining Contractual Life	9 years 32 days
Number Exercisable (in shares) | shares	0
Weighted-Ave. Exercise Price, Exercisable (in dollars per share) | $ / shares	$ 0.16
Range 3 [Member]
Range of Exercise/Grant Prices (in dollars per share) | $ / shares	$ 0.40
Number Outstanding (in shares) | shares	425,000
Weighted-Ave. Remaining Contractual Life	6 years 94 days
Number Exercisable (in shares) | shares	425,000
Weighted-Ave. Exercise Price, Exercisable (in dollars per share) | $ / shares	$ 0.40
Range 4 [Member]
Range of Exercise/Grant Prices (in dollars per share) | $ / shares	$ 1.09
Number Outstanding (in shares) | shares	100,000
Weighted-Ave. Remaining Contractual Life	2 years 193 days
Number Exercisable (in shares) | shares	60,000
Weighted-Ave. Exercise Price, Exercisable (in dollars per share) | $ / shares	$ 1.09
Range 5 [Member]
Range of Exercise/Grant Prices (in dollars per share) | $ / shares	$ 4.53
Number Outstanding (in shares) | shares	15,000
Weighted-Ave. Remaining Contractual Life	1 year 306 days
Number Exercisable (in shares) | shares	15,000
Weighted-Ave. Exercise Price, Exercisable (in dollars per share) | $ / shares	$ 4.53
Range 6 [Member]
Range of Exercise/Grant Prices (in dollars per share) | $ / shares	$ 10.43
Number Outstanding (in shares) | shares	20,000
Weighted-Ave. Remaining Contractual Life	51 days
Number Exercisable (in shares) | shares	20,000
Weighted-Ave. Exercise Price, Exercisable (in dollars per share) | $ / shares	$ 10.43
Range of Exercise/Grant Prices (in dollars per share) | $ / shares	$ 0.70
Number Outstanding (in shares) | shares	860,000
Number Exercisable (in shares) | shares	520,000
Weighted-Ave. Exercise Price, Exercisable (in dollars per share) | $ / shares	$ 0.98

X

- Definition

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ 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)(iii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

X

- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ 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)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

X

- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ 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=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ 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)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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 (e)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=cmro_Range1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=cmro_Range2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=cmro_Range3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=cmro_Range4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=cmro_Range5Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=cmro_Range6Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: