v2.4.0.8

Note 3 - Customer and Supplier Concentrations (Details) - Revenues by geographic location (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Jan. 31, 2014 | Jan. 31, 2013
Revenue: |  |
Amount | $ 4,429 | $ 6,338
Percent | 100.00% | 100.00%
Asia Pacific [Member] |  |
Revenue: |  |
Amount | 4,319 | 6,238
Percent | 98.00% | 98.00%
North America [Member] |  |
Revenue: |  |
Amount | 73 | 78
Percent | 2.00% | 1.00%
Europe [Member] |  |
Revenue: |  |
Amount | $ 37 | $ 22
Percent | 1.00% | 0.00%

X
- Definition Geographic segment percent. + References No definition available. + Details
Name: | cmro_GeographicSegmentPercent
Namespace Prefix: | cmro_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration