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Commitments and Contingencies - Additional Information (Detail) $ in Millions | Oct. 21, 2022 USD ($)
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Share Purchase Agreement |
Loss Contingencies [Line Items] |
Loss contingency, maximum earnout amount | $ 3
Escrow Agreement |
Loss Contingencies [Line Items] |
Loss contingency, maximum earnout amount | $ 1

X
- Definition Loss contingency, maximum earnout amount. + References No definition available. + Details
Name: | mchx_LossContingencyMaximumEarnoutAmount
Namespace Prefix: | mchx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=mchx_SharePurchaseAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=mchx_EscrowAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |