Loans and Allowance for Loan Losses (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Total commercial loans	$ 458,469	$ 443,549
Total consumer loans	187,480	155,085
Commercial [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	452,399	430,831
30-59 days past due	845	839
60-89 days past due	563	4,087
Greater than 90 days	4,662	7,792
Total commercial loans	458,469	443,549
Commercial [Member] | Owner occupied RE [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	157,036	144,922
30-59 days past due	306	20
60-89 days past due		3,004
Greater than 90 days	1,448	1,308
Total commercial loans	158,790	149,254
Commercial [Member] | Non-owner occupied RE [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	163,700	161,772
30-59 days past due		645
60-89 days past due	463	294
Greater than 90 days	1,000	1,912
Total commercial loans	165,163	164,623
Commercial [Member] | Construction [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	19,341	16,528
30-59 days past due		2
60-89 days past due
Greater than 90 days	1,006	1,311
Total commercial loans	20,347	17,841
Commercial [Member] | Business [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	112,322	107,609
30-59 days past due	539	172
60-89 days past due	100	789
Greater than 90 days	1,208	3,261
Total commercial loans	114,169	111,831
Consumer [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	186,411	153,595
30-59 days past due	660	428
60-89 days past due	44
Greater than 90 days	365	1,062
Total consumer loans	187,480	155,085
Consumer [Member] | Construction [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	13,749	5,546
30-59 days past due
60-89 days past due
Greater than 90 days
Total consumer loans	13,749	5,546
Consumer [Member] | Real estate [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	85,999	56,748
30-59 days past due	560	343
60-89 days past due
Greater than 90 days		707
Total consumer loans	86,559	57,798
Consumer [Member] | Home equity [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	77,430	82,229
30-59 days past due	100	80
60-89 days past due
Greater than 90 days	365	355
Total consumer loans	77,895	82,664
Consumer [Member] | Other [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual by past due status
Current	9,233	9,072
30-59 days past due		5
60-89 days past due	44
Greater than 90 days
Total consumer loans	$ 9,277	$ 9,077