Loans and Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	$ 8,069	$ 9,895
Impaired loans without a valuation allowance, Unpaid Principal Balance	8,182	10,060
Impaired loans without a valuation allowance, Average Recorded Investment	8,900	9,541
Impaired loans without a valuation allowance, Interest Income Recognized	321	519
Impaired loans with a valuation allowance, Recorded Investment	1,426	3,895
Impaired loans with a valuation allowance, Unpaid Principal Balance	1,616	3,996
Impaired loans with a valuation allowance, Related Allowance	389	564
Impaired loans with a valuation allowance, Average Recorded Investment	2,012	6,996
Impaired loans with a valuation allowance, Interest Income Recognized	83	261
Total impaired loans, Recorded Investment	9,495	13,790
Total impaired loans, Unpaid Principal Balance	9,798	14,056
Total impaired loans, Related Allowance	389	564
Total impaired loans, Average Recorded Investment	10,912	16,537
Total impaired loans, Interest Income Recognized	404	780
Commercial Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	4,797	5,786
Impaired loans without a valuation allowance, Unpaid Principal Balance	4,839	5,854
Impaired loans without a valuation allowance, Average Recorded Investment	5,225	4,657
Impaired loans without a valuation allowance, Interest Income Recognized	182	340
Impaired loans with a valuation allowance, Recorded Investment	431	2,196
Impaired loans with a valuation allowance, Unpaid Principal Balance	440	2,285
Impaired loans with a valuation allowance, Related Allowance	259	498
Impaired loans with a valuation allowance, Average Recorded Investment	725	4,869
Impaired loans with a valuation allowance, Interest Income Recognized	18	118
Consumer Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	1,806	2,177
Impaired loans without a valuation allowance, Unpaid Principal Balance	1,821	2,202
Impaired loans without a valuation allowance, Average Recorded Investment	1,991	2,669
Impaired loans without a valuation allowance, Interest Income Recognized	89	96
Impaired loans with a valuation allowance, Recorded Investment	650	1,270
Impaired loans with a valuation allowance, Unpaid Principal Balance	831	1,281
Impaired loans with a valuation allowance, Related Allowance	34	11
Impaired loans with a valuation allowance, Average Recorded Investment	908	1,353
Impaired loans with a valuation allowance, Interest Income Recognized	32	90
Construction and Land Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	362	369
Impaired loans without a valuation allowance, Unpaid Principal Balance	375	383
Impaired loans without a valuation allowance, Average Recorded Investment	366	358
Impaired loans without a valuation allowance, Interest Income Recognized	18	23
Impaired loans with a valuation allowance, Recorded Investment	0	0
Impaired loans with a valuation allowance, Unpaid Principal Balance	0	0
Impaired loans with a valuation allowance, Related Allowance	0	0
Impaired loans with a valuation allowance, Average Recorded Investment	0	177
Impaired loans with a valuation allowance, Interest Income Recognized	0	0
Commercial and Industrial Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	1,104	1,563
Impaired loans without a valuation allowance, Unpaid Principal Balance	1,147	1,621
Impaired loans without a valuation allowance, Average Recorded Investment	1,318	1,857
Impaired loans without a valuation allowance, Interest Income Recognized	32	60
Impaired loans with a valuation allowance, Recorded Investment	345	429
Impaired loans with a valuation allowance, Unpaid Principal Balance	345	430
Impaired loans with a valuation allowance, Related Allowance	96	55
Impaired loans with a valuation allowance, Average Recorded Investment	379	597
Impaired loans with a valuation allowance, Interest Income Recognized	$ 33	$ 53