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Future Minimum Payments (Parenthetical) (Details)	Mar. 31, 2024 Contract
Contractual Obligation, Fiscal Year Maturity Schedule [Abstract]
Number of contracts	2

X

- Definition

Number of contracts not yet commenced.

+ References

No definition available.

+ Details

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Namespace Prefix:	mchx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_ContractualObligationFiscalYearMaturityScheduleAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration