Letter of credit facility, maximum borrowing capacity.

No definition available.

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

- Definition

Letter of credit maturity date.

+ References

No definition available.

+ Details

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Namespace Prefix:	mhh_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of credit facility additional borrowing capacity upon certain conditions.

+ References

No definition available.

+ Details

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Namespace Prefix:	mhh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line of credit facility final amount.

+ References

No definition available.

+ Details

Name:	mhh_LineOfCreditFacilityFinalAmount
Namespace Prefix:	mhh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of eligible accounts receivable used to determine borrowings available under credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	mhh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of eligible unbilled accounts used to determine borrowings available under credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	mhh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Revolving credit facility percentage margin adjusted SOFR rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	mhh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Revolving credit facility percentage margin over base rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	mhh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Term loan percentage margin adjusted SOFR rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	mhh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Delayed draw term loan percentage margin over base rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	mhh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-1A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482900/835-30-50-1

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the required periodic payments of both interest and principal.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow for loan and debt issuance costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Credit Facility - Additional information (Detail) - USD ($)					1 Months Ended	6 Months Ended	12 Months Ended
	May 09, 2024	Jan. 03, 2023	Jan. 04, 2022	Oct. 01, 2020	Aug. 31, 2022	Jun. 30, 2025	Dec. 31, 2020	Dec. 31, 2024	Jul. 13, 2017
Line of Credit Facility [Line Items]
Deferred financing costs						$ 142,000		$ 189,000
Revolving Line of Credit [Member]
Line of Credit Facility [Line Items]
Percentage of eligible accounts receivable							85.00%
Outstanding borrowings amount								0
Revolving Line of Credit [Member] \| United States [Member]
Line of Credit Facility [Line Items]
Percentage of eligible unbilled accounts							60.00%
Revolving Line of Credit [Member] \| Canada [Member]
Line of Credit Facility [Line Items]
Credit facility maximum borrowing capacity						$ 10,000,000
Percentage of eligible accounts receivable						85.00%
Percentage of eligible unbilled accounts						60.00%
Revolving Line of Credit [Member] \| Swing Loans [Member]
Line of Credit Facility [Line Items]
Credit facility maximum borrowing capacity							$ 6,000,000
Revolving Line of Credit [Member] \| Letter Of Credit One From PNC Bank To Vietnam Client [Member]
Line of Credit Facility [Line Items]
Letter of credit facility, outstanding amount	$ 162,000
Letter of credit maturity date	Mar. 21, 2026
Revolving Line of Credit [Member] \| Letter Of Credit Two From PNC Bank To Vietnam Client [Member]
Line of Credit Facility [Line Items]
Letter of credit facility, outstanding amount	$ 162,000
Letter of credit maturity date	Mar. 21, 2026
Revolving Line of Credit [Member] \| Letter of Credit [Member]
Line of Credit Facility [Line Items]
Letter of credit facility, maximum borrowing capacity							$ 5,000,000
Federal Funds Rate [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate						0.50%
PNC Bank, N.A. [Member]
Line of Credit Facility [Line Items]
Credit facility maximum borrowing capacity									$ 53,100,000
Payment of deferred financing costs						$ 1,039,000
PNC Bank, N.A. [Member] \| Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Credit facility maximum borrowing capacity						0		0	13,100,000
Credit facility, periodic payment				$ 1,100,000
Repayments of debt					$ 7,600,000
Line of credit facility final amount		$ 1,100,000
PNC Bank, N.A. [Member] \| Revolving Line of Credit [Member]
Line of Credit Facility [Line Items]
Credit facility maximum borrowing capacity						$ 22,200,000		$ 22,500,000	$ 40,000,000
Maximum [Member]
Line of Credit Facility [Line Items]
Revolving credit facility percentage margin over base rate							1.25%
Term loan percentage margin over base rate							2.50%
Revolving credit facility percentage margin adjusted SOFR rate							2.25%
Term loan percentage margin adjusted SOFR rate							3.50%
Maximum [Member] \| PNC Bank, N.A. [Member] \| Revolving Line of Credit [Member]
Line of Credit Facility [Line Items]
Credit facility additional borrowing capacity upon certain conditions			$ 20,000,000
Minimum [Member]
Line of Credit Facility [Line Items]
Revolving credit facility percentage margin over base rate							0.50%
Term loan percentage margin over base rate							1.75%
Revolving credit facility percentage margin adjusted SOFR rate							1.50%
Term loan percentage margin adjusted SOFR rate							2.75%