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Concentrations - Additional Information (Details)	Dec. 31, 2024 Entity
Risks and Uncertainties [Abstract]
Number of financial institution	2
Concentration Risk Threshold Percentage	10.00%

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- Definition

Concentration risk threshold percentage.

+ References

No definition available.

+ Details

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- Definition

The number of financial institutions.

+ References

No definition available.

+ Details

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

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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