Allowance for Loan Loss (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	$ 6,723	$ 6,919	$ 7,676
Financing Receivable, Allowance for Credit Losses, Charge-offs	(2,020)	(4,334)	(3,413)
Financing Receivable, Allowance for Credit Losses, Recoveries	165	323	206
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(1,855)	(4,011)	(3,207)
Provision for loan losses	400	3,815	2,450
Financing Receivable, Allowance for Credit Losses	5,268	6,723	6,919
Commercial and Industrial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	812	948	972
Financing Receivable, Allowance for Credit Losses, Charge-offs	(514)	(289)	(679)
Financing Receivable, Allowance for Credit Losses, Recoveries	48	54	34
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(466)	(235)	(645)
Provision for loan losses	40	99	621
Financing Receivable, Allowance for Credit Losses	386	812	948
Construction And Land Development Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	1,545	1,470	2,223
Financing Receivable, Allowance for Credit Losses, Charge-offs	(39)	(231)	(1,758)
Financing Receivable, Allowance for Credit Losses, Recoveries	6	46	2
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(33)	(185)	(1,756)
Provision for loan losses	(1,146)	260	1,003
Financing Receivable, Allowance for Credit Losses	366	1,545	1,470
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	3,137	3,009	2,893
Financing Receivable, Allowance for Credit Losses, Charge-offs	(262)	(3,184)	(422)
Financing Receivable, Allowance for Credit Losses, Recoveries	4	71	0
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(258)	(3,113)	(422)
Provision for loan losses	307	3,241	538
Financing Receivable, Allowance for Credit Losses	3,186	3,137	3,009
Residential Real Estate Loans, Total [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	1,126	1,363	1,336
Financing Receivable, Allowance for Credit Losses, Charge-offs	(808)	(545)	(533)
Financing Receivable, Allowance for Credit Losses, Recoveries	88	134	155
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(720)	(411)	(378)
Provision for loan losses	708	174	405
Financing Receivable, Allowance for Credit Losses	1,114	1,126	1,363
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	103	129	141
Financing Receivable, Allowance for Credit Losses, Charge-offs	(397)	(85)	(21)
Financing Receivable, Allowance for Credit Losses, Recoveries	19	18	15
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(378)	(67)	(6)
Provision for loan losses	491	41	(6)
Financing Receivable, Allowance for Credit Losses	216	103	129
Financing Receivable, Allowance For Loan Loss, Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	0	0	111
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	0	0
Financing Receivable, Allowance for Credit Losses, Recoveries	0	0	0
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	0	0	0
Provision for loan losses	0	0	(111)
Financing Receivable, Allowance for Credit Losses	$ 0	$ 0	$ 0