Loans and Allowance for Loan Losses (Details 7) (USD $) In Thousands, unless otherwise specified	3 Months Ended				3 Months Ended										3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Commercial [Member]	Dec. 31, 2013 Commercial [Member]	Mar. 31, 2014 Commercial [Member] Owner occupied RE [Member]	Mar. 31, 2013 Commercial [Member] Owner occupied RE [Member]	Mar. 31, 2014 Commercial [Member] Non-owner occupied RE [Member]	Mar. 31, 2013 Commercial [Member] Non-owner occupied RE [Member]	Mar. 31, 2014 Commercial [Member] Construction [Member]	Mar. 31, 2013 Commercial [Member] Construction [Member]	Mar. 31, 2014 Commercial [Member] Business [Member]	Mar. 31, 2013 Commercial [Member] Business [Member]	Mar. 31, 2014 Consumer [Member]	Dec. 31, 2013 Consumer [Member]	Mar. 31, 2014 Consumer [Member] Real estate [Member]	Mar. 31, 2013 Consumer [Member] Real estate [Member]	Mar. 31, 2014 Consumer [Member] Home equity [Member]	Mar. 31, 2013 Consumer [Member] Home equity [Member]	Mar. 31, 2014 Consumer [Member] Construction [Member]	Mar. 31, 2013 Consumer [Member] Construction [Member]	Mar. 31, 2014 Consumer [Member] Other [Member]	Mar. 31, 2013 Consumer [Member] Other [Member]
Summary of activity related to our allowance for loan losses
Balance, beginning of period	$ 10,213	$ 9,091	$ 8,656	$ 8,239	$ 1,880	$ 1,774	$ 2,633	$ 1,946	$ 397	$ 313	$ 3,329	$ 3,981	$ 2,057	$ 1,974	$ 1,091	$ 346	$ 644	$ 540	$ 99	$ 3	$ 140	$ 188
Provision for loan losses	1,000	1,125			13	524	780	14	4	80	43	(113)			151	199	82	274	5	83	(78)	61
Total loan charge-offs	(512)	(944)				(386)	(434)					(515)					(76)				(2)	(43)
Loan recoveries	12	95						2			11	86					1	7
Net loan charge-offs	(500)	(849)				(386)	(434)	2			11	(429)					(75)	7			(2)	(43)
Balance, end of period	$ 10,713	$ 9,367	$ 8,656	$ 8,239	$ 1,893	$ 1,916	$ 2,979	$ 1,962	$ 401	$ 393	$ 3,383	$ 3,439	$ 2,057	$ 1,974	$ 1,242	$ 545	$ 651	$ 821	$ 104	$ 86	$ 60	$ 206
Net charge-offs to average loans (annualized)	0.27%	0.52%
Allowance for loan losses to gross loans	1.38%	1.41%
Allowance for loan losses to nonperforming loans	120.99%	148.49%