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Loans and Allowance for Loan Losses (Details 9) $ in Thousands		12 Months Ended
		Dec. 31, 2017 USD ($) Contract	Dec. 31, 2016 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	[1]	6	7
Pre- Modification	[1]	$ 946	$ 536
Post- Modification	[1]	$ 938	$ 536
Commercial, financial, and agricultural
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	[1]	3	0
Pre- Modification	[1]	$ 773	$ 0
Post- Modification	[1]	$ 773	$ 0
Residential real estate | Mortgages
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	[1]	2	7
Pre- Modification	[1]	$ 118	$ 536
Post- Modification	[1]	$ 116	$ 536
Commercial real estate | Mortgages
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	[1]	1	0
Pre- Modification	[1]	$ 55	$ 0
Post- Modification	[1]	$ 49	$ 0
[1] The amounts reported post-modification are inclusive of all partial pay-downs and charge-offs, and no portion of the debt was forgiven. Loans modified as a TDR that were fully paid down, charged-off, or foreclosed upon during the period ended are not reported.

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Number of 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 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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