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Loans and Asset Quality Information (Schedule of Information of Loans Modified in Troubled Debt Restructuring) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs		2		10
TDRs arising during period Pre-Modification		$ 160		$ 768
TDRs arising during period Post-Modification		$ 160		$ 768
Non-covered [Member]
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs		2		8
TDRs arising during period Pre-Modification		$ 160		$ 629
TDRs arising during period Post-Modification		$ 160		$ 629
Non-covered [Member] | Commercial, financial, and agricultural [Member]
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs Accruing		1		1
TDRs arising during period - Accruing Pre-Modification		$ 8		$ 8
TDRs arising during period - Accruing Post-Modification		$ 8		$ 8
Number of contracts, TDRs Nonaccrual
TDRs arising during period - Nonaccrual Pre-Modification
TDRs arising during period - Nonaccrual Post-Modification
Non-covered [Member] | Real estate - construction, land development & other land loans [Member]
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs Accruing
TDRs arising during period - Accruing Pre-Modification
TDRs arising during period - Accruing Post-Modification
Number of contracts, TDRs Nonaccrual				1
TDRs arising during period - Nonaccrual Pre-Modification				$ 1
TDRs arising during period - Nonaccrual Post-Modification				$ 1
Non-covered [Member] | Real estate - mortgage - residential (1-4 family) first mortgages [Member]
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs Accruing		1		2
TDRs arising during period - Accruing Pre-Modification		$ 152		$ 265
TDRs arising during period - Accruing Post-Modification		$ 152		$ 265
Number of contracts, TDRs Nonaccrual				3
TDRs arising during period - Nonaccrual Pre-Modification				$ 304
TDRs arising during period - Nonaccrual Post-Modification				$ 304
Non-covered [Member] | Real estate - mortgage - home equity loans / lines of credit [Member]
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs Accruing
TDRs arising during period - Accruing Pre-Modification
TDRs arising during period - Accruing Post-Modification
Number of contracts, TDRs Nonaccrual
TDRs arising during period - Nonaccrual Pre-Modification
TDRs arising during period - Nonaccrual Post-Modification
Non-covered [Member] | Real estate mortgage commercial and other [Member]
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs Accruing				1
TDRs arising during period - Accruing Pre-Modification				$ 51
TDRs arising during period - Accruing Post-Modification				$ 51
Number of contracts, TDRs Nonaccrual
TDRs arising during period - Nonaccrual Pre-Modification
TDRs arising during period - Nonaccrual Post-Modification
Non-covered [Member] | Installment loans to individuals [Member]
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs Accruing
TDRs arising during period - Accruing Pre-Modification
TDRs arising during period - Accruing Post-Modification
Number of contracts, TDRs Nonaccrual
TDRs arising during period - Nonaccrual Pre-Modification
TDRs arising during period - Nonaccrual Post-Modification
Covered [Member]
Information related to loans modified in a troubled debt restructuring:
Number of contracts, TDRs Accruing				2
TDRs arising during period - Accruing Pre-Modification				$ 139
TDRs arising during period - Accruing Post-Modification				$ 139
Number of contracts, TDRs Nonaccrual
TDRs arising during period - Nonaccrual Pre-Modification
TDRs arising during period - Nonaccrual Post-Modification

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-Publisher FASB
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-Topic 310
-SubTopic 10
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