XML 34 R52.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Customer and Geographic Information (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 30, 2012 | Apr. 30, 2011 | Apr. 30, 2012 | Apr. 30, 2011
International sales including sales to domestic companies for inclusion in products sold to international customers | $ 39,653,000 | $ 52,706,000 | $ 124,621,000 | $ 137,024,000
Minimum percentage of consolidated net sales sold to one customer or individual country requiring additional and separate disclosure | 10.00% | 10.00% | 10.00% | 10.00%
U S Government [Member] |  |  |  |
Percentage of revenue generated from external customer type | 48.60% | 49.00% | 47.80% | 63.00%
Commercial (United States) [Member] |  |  |  |
Percentage of revenue generated from external customer type | 11.70% | 10.80% | 12.30% | 8.00%
Total United States Sales [Member] |  |  |  |
Percentage of revenue generated from external customer type | 60.30% | 59.80% | 60.10% | 71.00%
International Sales [Member] |  |  |  |
Percentage of revenue generated from external customer type | 39.70% | 40.20% | 39.90% | 29.00%

X
- Definition Percentage of revenue generated from a single external customer type. + References No definition available. + Details
Name: | cmtl_EntityWideRevenuePercentageByMajorCustomerType
Namespace Prefix: | cmtl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum percentage of consolidated net sales that, if made to one customer or country, would require additional and separate disclosure. + References No definition available. + Details
Name: | cmtl_MinimumPercentageOfConsolidatedNetSalesToOneCustomerOrIndividualCountryRequiringAdditionalDisclosure
Namespace Prefix: | cmtl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revenues from external customers attributed to all foreign countries in total from which the entity derives revenues. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 38 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration