Represents the additional amount of financing receivables modified by troubled debt restructurings.

No definition available.

Name:	mfnc_FinancingReceivableModificationsAdditions
Namespace Prefix:	mfnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the amount of principal payments received in respect of financing receivables modified by troubled debt restructurings.

+ References

No definition available.

+ Details

Name:	mfnc_FinancingReceivableModificationsPrincipalPayments
Namespace Prefix:	mfnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount of financing receivables modified by troubled debt restructurings that have transferred out of TDR.

+ References

No definition available.

+ Details

Name:	mfnc_FinancingReceivableModificationsTransferredOutOfTroubledDebtRestructuring
Namespace Prefix:	mfnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount of financing receivables modified by troubled debt restructurings that have transferred from accrual status.

+ References

No definition available.

+ Details

Name:	mfnc_FinancingReceivableModificationsTransfersFromAccrualStatus
Namespace Prefix:	mfnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the amount of financing receivables modified by troubled debt restructurings that have transferred from nonaccrual status.

+ References

No definition available.

+ Details

Name:	mfnc_FinancingReceivableModificationsTransfersFromNonaccrualStatus
Namespace Prefix:	mfnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the amount of financing receivables modified by troubled debt restructurings that have fallen to the accrual status.

+ References

No definition available.

+ Details

Name:	mfnc_FinancingReceivableModificationsTransfersToAccrualStatus
Namespace Prefix:	mfnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount of financing receivables modified by troubled debt restructurings that have transferred to foreclosed properties.

+ References

No definition available.

+ Details

Name:	mfnc_FinancingReceivableModificationsTransfersToForeclosedProperties
Namespace Prefix:	mfnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount of financing receivables modified by troubled debt restructurings that have fallen to the nonaccrual status.

+ References

No definition available.

+ Details

Name:	mfnc_FinancingReceivableModificationsTransfersToNonaccrualStatus
Namespace Prefix:	mfnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	mfnc_TroubledDebtRestructuringRollForward
Namespace Prefix:	mfnc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

+ Details

Name:	us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

+ Details

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

- Details

Name:	us-gaap_FinancingReceivableTroubledDebtRestructuringAxis=mfnc_CommercialFinancialAndAgriculturalLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableTroubledDebtRestructuringAxis=mfnc_OneToFourFamilyResidentialRealEstateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableTroubledDebtRestructuringAxis=us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableTroubledDebtRestructuringAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=mfnc_AccruingStatusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=mfnc_NonaccrualStatusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

LOANS (Details 8) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Changes in troubled debt restructuring
Beginning balance	$ 3,105	$ 6,277	$ 6,277
Principal payments	(3)	(2,529)	(2,842)
Charge-offs			(278)
New restructured	3,288
Transferred out of TDRs			91
Transfers to foreclosed properties			(143)
Transfer from nonaccrual		(91)
Transfers to nonaccrual			(89)
Transfer from accruing			89
Transfer to accruing		(91)
Ending balance	6,390	3,748	3,105
Accrual Basis
Changes in troubled debt restructuring
Beginning balance	3,105	5,663	5,663
Principal payments	(3)	(2,514)	(2,523)
Charge-offs			(37)
New restructured	2,158
Transferred out of TDRs			91
Transfer from nonaccrual		91
Transfers to nonaccrual			(89)
Ending balance	5,260	3,240	3,105
Nonaccrual Basis
Changes in troubled debt restructuring
Beginning balance		614	614
Principal payments		(15)	(319)
Charge-offs			(241)
New restructured	1,130
Transfers to foreclosed properties		(91)	(143)
Transfer from accruing			89
Ending balance	1,130	508
Commercial real estate loans
Changes in troubled debt restructuring
Beginning balance	1,007	3,520	3,520
Principal payments		(2,511)	(2,513)
New restructured	1,216
Ending balance	2,223	1,009	1,007
Commercial real estate loans \| Accrual Basis
Changes in troubled debt restructuring
Beginning balance	1,007	3,520	3,520
Principal payments		(2,511)	(2,513)
New restructured	647
Ending balance	1,654	1,009	1,007
Commercial real estate loans \| Nonaccrual Basis
Changes in troubled debt restructuring
New restructured	569
Ending balance	569
Commercial, financial, and agricultural
Changes in troubled debt restructuring
Beginning balance	1,186	1,709	1,709
Principal payments		(15)	(319)
Charge-offs			(204)
New restructured	268
Ending balance	1,454	1,694	1,186
Commercial, financial, and agricultural \| Accrual Basis
Changes in troubled debt restructuring
Beginning balance	1,186			1,186
New restructured	268
Ending balance	1,454	1,186		1,186
Commercial, financial, and agricultural \| Nonaccrual Basis
Changes in troubled debt restructuring
Beginning balance		523	523
Principal payments		(15)	(319)
Charge-offs			(204)
Ending balance		508
Commercial construction
Changes in troubled debt restructuring
Beginning balance	852	858	858
Principal payments	(3)		(6)
New restructured	266
Ending balance	1,115	858	852
Commercial construction \| Accrual Basis
Changes in troubled debt restructuring
Beginning balance	852	858	858
Principal payments	(3)		(6)
Ending balance	849	858	852
Commercial construction \| Nonaccrual Basis
Changes in troubled debt restructuring
New restructured	266
Ending balance	266
One to four family residential real estate
Changes in troubled debt restructuring
Beginning balance	60	190	190
Principal payments		(3)	(4)
Charge-offs			(74)
New restructured	1,538
Transferred out of TDRs			91
Transfers to foreclosed properties			(143)
Transfer from nonaccrual		(91)
Transfers to nonaccrual			(89)
Transfer from accruing			89
Transfer to accruing		(91)
Ending balance	1,598	187	60
One to four family residential real estate \| Accrual Basis
Changes in troubled debt restructuring
Beginning balance	60	99	99
Principal payments		(3)	(4)
Charge-offs			(37)
New restructured	1,243
Transferred out of TDRs			91
Transfer from nonaccrual		91
Transfers to nonaccrual			(89)
Ending balance	1,303	187	60
One to four family residential real estate \| Nonaccrual Basis
Changes in troubled debt restructuring
Beginning balance		91	91
Charge-offs			(37)
New restructured	295
Transfers to foreclosed properties		(91)	(143)
Transfer from accruing			89
Ending balance	$ 295