v2.4.1.9

Note 4 - Stock-Based Compensation - Share-Based Compensation Expense (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 31, 2014 | Oct. 31, 2013 | Oct. 31, 2014 | Oct. 31, 2013
Stock-based compensation expense | $ 12 us-gaap_AllocatedShareBasedCompensationExpense | $ 18 us-gaap_AllocatedShareBasedCompensationExpense | $ 36 us-gaap_AllocatedShareBasedCompensationExpense | $ 71 us-gaap_AllocatedShareBasedCompensationExpense
Impact on basic and diluted earnings per share (in dollars per share) | $ 0 cmro_ImpactOnBasicAndDilutedEarningsPerShare | $ 0 cmro_ImpactOnBasicAndDilutedEarningsPerShare | $ 0 cmro_ImpactOnBasicAndDilutedEarningsPerShare | $ 0 cmro_ImpactOnBasicAndDilutedEarningsPerShare

X
- Definition Represents the impact of stock-based compensation expense on basic and diluted earnings per share. + References No definition available. + Details
Name: | cmro_ImpactOnBasicAndDilutedEarningsPerShare
Namespace Prefix: | cmro_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration