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Allowance For Loan Loss Additional Information (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	$ 5,662		$ 5,733
Financing Receivable, Collectively Evaluated for Impairment	375,409		383,989
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	284		312
Financing Receivable, Individually Evaluated for Impairment	5,674		13,986
Allowance for loan losses	5,946	6,723	6,045
Loans and Leases Receivable, Gross, Carrying Amount	381,083	398,426	397,975
Commercial and Industrial Loans [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	546		754
Financing Receivable, Collectively Evaluated for Impairment	58,630		58,395
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		0
Financing Receivable, Individually Evaluated for Impairment	136		184
Allowance for loan losses	546		754
Loans and Leases Receivable, Gross, Carrying Amount	58,766	59,334	58,579
Construction And Land Development Loans [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,090		1,468
Financing Receivable, Collectively Evaluated for Impairment	35,469		36,817
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	99		141
Financing Receivable, Individually Evaluated for Impairment	1,593		3,756
Allowance for loan losses	1,189		1,609
Loans and Leases Receivable, Gross, Carrying Amount	37,062	37,631	40,573
Commercial Real Estate Loans, Total [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,919		2,519
Financing Receivable, Collectively Evaluated for Impairment	167,564		175,733
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	185		139
Financing Receivable, Individually Evaluated for Impairment	2,956		8,024
Allowance for loan losses	3,104		2,658
Loans and Leases Receivable, Gross, Carrying Amount	170,520	183,611	183,757
Residential Real Estate Loans, Total [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	982		915
Financing Receivable, Collectively Evaluated for Impairment	101,576		101,297
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		32
Financing Receivable, Individually Evaluated for Impairment	989		2,022
Allowance for loan losses	982		947
Loans and Leases Receivable, Gross, Carrying Amount	102,565	105,631	103,319
Consumer Installment and Revolving Loans [Member]
Financing Receivable Allowance For Credit Loss Additional Information [Line Items]
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	125		77
Financing Receivable, Collectively Evaluated for Impairment	12,170		11,747
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		0
Financing Receivable, Individually Evaluated for Impairment	0		0
Allowance for loan losses	125		77
Loans and Leases Receivable, Gross, Carrying Amount	$ 12,170	$ 12,219	$ 11,747

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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-Name Accounting Standards Codification

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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