Loan Quality (Aging of Payments of the Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 706,321	$ 711,400
30-59 Days	4,732	3,794
60-89 Days	453	1,428
90+ Days	338	563
Total	5,523	5,785
Nonaccrual loans	34,320	36,394
Total Loans	746,164	753,579
Residential Real Estate First Liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	148,584	147,236
30-59 Days	1,716	2,862
60-89 Days	48	797
90+ Days	51	120
Total	1,815	3,779
Nonaccrual loans	3,501	3,584
Total Loans	153,900	154,599
Residential Real Estate Junior Liens & Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	39,404	40,741
30-59 Days	325	449
60-89 Days	13	228
90+ Days	211	112
Total	549	789
Nonaccrual loans	705	758
Total Loans	40,658	42,288
Residential Real Estate 1-4 Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	187,988	187,977
30-59 Days	2,041	3,311
60-89 Days	61	1,025
90+ Days	262	232
Total	2,364	4,568
Nonaccrual loans	4,206	4,342
Total Loans	194,558	196,887
Residential Real Estate - Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	13,183	14,875
30-59 Days	595
Total	595
Nonaccrual loans	554	557
Total Loans	14,332	15,432
Commercial, industrial and agricultural real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	335,820	334,822
30-59 Days	1,580	64
60-89 Days	279	329
Total	1,859	393
Nonaccrual loans	26,760	28,659
Total Loans	364,439	363,874
Commercial, industrial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	159,456	163,387
30-59 Days	391	161
60-89 Days	99	35
90+ Days	62	315
Total	552	511
Nonaccrual loans	2,800	2,836
Total Loans	162,808	166,734
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	9,874	10,339
30-59 Days	125	258
60-89 Days	14	39
90+ Days	14	16
Total	153	313
Total Loans	$ 10,027	$ 10,652