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Credit Quality - Additional information (Detail)	6 Months Ended
	Jun. 30, 2015 USD ($) Loan	Dec. 31, 2014 USD ($) Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Minimum commercial loan relationships to be reviewed by loan review function	$ 4,000,000
Restructured loans to borrowers experiencing financial difficulty in excess of	$ 250,000
Performing status returned period	6 months
Allowance for loan losses	$ 478,000	$ 475,000
Non Covered Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing loans contractually past due 90 days or more	0	0
Covered Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing loans contractually past due 90 days or more	$ 0	$ 0
Waccamaw Bank
Financing Receivable, Allowance for Credit Losses [Line Items]
Percentage of loan and foreclosed real estate losses covered by FDIC	80.00%
PCI loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of impaired loans | Loan	2	2
Number of loans | Loan	6	7

X

- Definition

Allowance for loan losses.

+ References

No definition available.

+ Details

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X

- Definition

Total commercial loans.

+ References

No definition available.

+ Details

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X

- Definition

Financing Receivable Number Of Loans

+ References

No definition available.

+ Details

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X

- Definition

Loans And Leases Receivable Impaired Number Of Loans

+ References

No definition available.

+ Details

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X

- Definition

Percentage of loss covered by FDIC.

+ References

No definition available.

+ Details

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X

- Definition

Performing status returned period.

+ References

No definition available.

+ Details

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X

- Definition

Restructured loans reserves.

+ References

No definition available.

+ Details

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

X

- 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

No definition available.

+ Details

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 7



-Subparagraph (d)



-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524

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- Details

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- Details

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- Details

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