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Note 5 - Allowance for Loan Losses - Allowance for Loan Losses on PCI Loans and Recorded Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Acquired impaired loans evaluated for impairment	$ 9,052	$ 12,003
Allowance for acquired impaired loans
Commercial Portfolio Segment [Member]
Acquired impaired loans evaluated for impairment	4,716	5,273
Allowance for acquired impaired loans
Commercial Portfolio Segment [Member] | Waccamaw Commercial [Member]
Acquired impaired loans evaluated for impairment
Allowance for acquired impaired loans
Commercial Portfolio Segment [Member] | Peoples Commercial [Member]
Acquired impaired loans evaluated for impairment	4,352	4,405
Allowance for acquired impaired loans
Commercial Portfolio Segment [Member] | Other Commercial Loan [Member]
Acquired impaired loans evaluated for impairment	364	868
Allowance for acquired impaired loans
Consumer Real Estate Portfolio Segment [Member]
Acquired impaired loans evaluated for impairment	4,336	6,730
Allowance for acquired impaired loans
Consumer Real Estate Portfolio Segment [Member] | Waccamaw Serviced Home Equity Lines [Member]
Acquired impaired loans evaluated for impairment	2,843	5,017
Allowance for acquired impaired loans
Consumer Real Estate Portfolio Segment [Member] | Waccamaw Residential [Member]
Acquired impaired loans evaluated for impairment	626	788
Allowance for acquired impaired loans
Consumer Real Estate Portfolio Segment [Member] | Peoples Residential [Member]
Acquired impaired loans evaluated for impairment	867	925
Allowance for acquired impaired loans

X

- Definition

Represents the amount of acquired impaired loans evaluated for impairment.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the amount of allowance for acquired impaired loans.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- Details

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X

- Details

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X

- Details

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X

- Details

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- Details

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X

- Details

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- Details

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Period Type:

X

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