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Loans Receivable and Allowance for Loan Losses (Impaired Loans and Related Interest Income by Loan Portfolio Class) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 4,352		$ 4,352		$ 2,855
Impaired Financing Receivable, with Related Allowance, Recorded Investment	74		74		6,373
Impaired Financing Receivable, Recorded Investment	4,426		4,426		9,228
Unpaid Principal Balance, With no related allowance recorded	5,456		5,456		4,826
Unpaid Principal Balance, With an allowance recorded	1,020		1,020		6,446
Unpaid Principal Balance, Total	6,476		6,476		11,272
Associated Allowance	15		15		1,613
Average Recorded Investment, Total	3,832	$ 10,543	3,621	$ 10,713
Interest Income Recognized, Total	34	46	93	513
Residential Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,003		1,003		168
Impaired Financing Receivable, Recorded Investment	1,003		1,003		168
Unpaid Principal Balance, With no related allowance recorded	1,189		1,189		173
Unpaid Principal Balance, Total	1,189		1,189		173
Associated Allowance	0		0		0
Average Recorded Investment, Total	579	249	372	236
Interest Income Recognized, Total	1	1	3	3
Commercial Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3,349		3,349		2,644
Impaired Financing Receivable, with Related Allowance, Recorded Investment	74		74		6,373
Impaired Financing Receivable, Recorded Investment	3,423		3,423		9,017
Unpaid Principal Balance, With no related allowance recorded	4,267		4,267		4,610
Unpaid Principal Balance, With an allowance recorded	1,020		1,020		6,446
Unpaid Principal Balance, Total	5,287		5,287		11,056
Associated Allowance	15		15		1,613
Average Recorded Investment, Total	3,253	10,294	3,249	10,477
Interest Income Recognized, Total	$ 33	$ 45	$ 90	$ 510
Commercial, financial and agricultural loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment					43
Impaired Financing Receivable, Recorded Investment					43
Unpaid Principal Balance, With no related allowance recorded					43
Unpaid Principal Balance, Total					43
Associated Allowance					$ 0

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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