Loans and Allowance for Loan Losses (Details 3) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Total commercial loans	$ 481,754	$ 458,469
Total consumer loans	205,728	187,480
Commercial [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	477,771	452,399
30-59 days past due	892	845
60-89 days past due	300	563
Greater than 90 days	2,791	4,662
Total commercial loans	481,754	458,469
Commercial [Member] | Owner occupied RE [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	180,398	157,036
30-59 days past due	137	306
60-89 days past due
Greater than 90 days	722	1,448
Total commercial loans	181,257	158,790
Commercial [Member] | Non-owner occupied RE [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	160,401	163,700
30-59 days past due	141
60-89 days past due		463
Greater than 90 days	544	1,000
Total commercial loans	161,086	165,163
Commercial [Member] | Construction [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	21,960	19,341
30-59 days past due
60-89 days past due
Greater than 90 days	938	1,006
Total commercial loans	22,898	20,347
Commercial [Member] | Business [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	115,012	112,322
30-59 days past due	614	539
60-89 days past due	300	100
Greater than 90 days	587	1,208
Total commercial loans	116,513	114,169
Consumer [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	204,387	186,411
30-59 days past due	59	660
60-89 days past due	862	44
Greater than 90 days	420	365
Total consumer loans	205,728	187,480
Consumer [Member] | Real estate [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	96,217	85,999
30-59 days past due	44	560
60-89 days past due	854
Greater than 90 days	57
Total consumer loans	97,172	86,559
Consumer [Member] | Home equity [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	82,495	77,430
30-59 days past due	5	100
60-89 days past due
Greater than 90 days	363	365
Total consumer loans	82,863	77,895
Consumer [Member] | Construction [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	14,029	13,749
30-59 days past due
60-89 days past due
Greater than 90 days
Total consumer loans	14,029	13,749
Consumer [Member] | Other [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status as well as accruing TDRs
Current	11,646	9,233
30-59 days past due	10
60-89 days past due	8	44
Greater than 90 days
Total consumer loans	$ 11,664	$ 9,277