v2.4.0.6

Note 3 - Customer and Supplier Concentrations (Detail) - Suppliers Comprising 10 Percent or More of the Company’s Gross Accounts Receivable (USD $) In Thousands, unless otherwise specified | Jan. 31, 2013 | Jan. 31, 2012
--- | --- | ---
Total gross accounts receivable due from suppliers (in Dollars) | $ 1,156 | $ 754
Total gross accounts receivable due from suppliers | 100.00% | 100.00%
Balance (in Dollars) | 1,130 | 694
Percentage | 98.00% | 92.00%
EDAC Electronics Company Ltd [Member] |  |
Balance (in Dollars) |  | 532
Percentage |  | 71.00%
Flextronics Electronics [Member] |  |
Balance (in Dollars) | 1,008 | 40
Percentage | 87.00% | 5.00%
Zheng Ge Electrical Company Ltd [Member] |  |
Balance (in Dollars) | $ 122 | $ 122
Percentage | 11.00% | 16.00%

X
- Definition Accounts receivable due from suppliers gross current. + References No definition available. + Details
Name: | cmro_AccountsReceivableDueFromSuppliersGrossCurrent
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Accounts receivable due from suppliers gross current percentage. + References No definition available. + Details
Name: | cmro_AccountsReceivableDueFromSuppliersGrossCurrentPercentage
Namespace Prefix: | cmro_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | cmro_MajorSuppliersAccountsReceivableGrossCurrent
Namespace Prefix: | cmro_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | cmro_MajorSuppliersAccountsReceivableGrossPercentage
Namespace Prefix: | cmro_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant