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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Deferred Tax Liabilities Valuation Allowance	$ 588	$ 559

X

- Definition

Deferred tax liabilities valuation allowance.

+ References

No definition available.

+ Details

Name:	mhh_DeferredTaxLiabilitiesValuationAllowance
Namespace Prefix:	mhh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant