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v3.23.3

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Deferred Tax Liabilities Valuation Allowance | $ 613 | $ 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