XML 26 R47.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Segment Reporting and Geographic Information (Details Textual) | 9 Months Ended
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Sep. 30, 2012
Segment reporting and geographic information (Textual) [Abstract] |
Percentage of revenue in other countries | 1.00%

X
- Definition The percentage of total revenue derived from sales to customers in countries other than the ones listed herein. + References No definition available. + Details
Name: | mchx_PercentageOfRevenuesInOtherCountriesMaximum
Namespace Prefix: | mchx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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