Loan Quality (Aging of Payments of the Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 729,515	$ 731,863
30-59 Days	3,252	7,056
60-89 Days	6,113	4,963
90+ Days	1,714	4,772
Total	11,079	16,791
Nonaccrual loans	27,770	17,756
Total Loans	768,364	766,410
Residential Real Estate First Liens [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	137,112	134,105
30-59 Days	690	2,574
60-89 Days	865	953
90+ Days	345	2,516
Total	1,900	6,043
Nonaccrual loans	3,951	1,749
Total Loans	142,963	141,897
Residential Real Estate Junior Liens & Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	44,960	46,311
30-59 Days	202	1,121
60-89 Days	157	121
90+ Days	45	301
Total	404	1,543
Nonaccrual loans	882	282
Total Loans	46,246	48,136
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	182,072	180,416
30-59 Days	892	3,695
60-89 Days	1,022	1,074
90+ Days	390	2,817
Total	2,304	7,586
Nonaccrual loans	4,833	2,031
Total Loans	189,209	190,033
Residential Real Estate - Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	14,507	21,161
30-59 Days	786
90+ Days	112	121
Total	898	121
Nonaccrual loans	575
Total Loans	15,980	21,282
Commercial, industrial and agricultural real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	343,812	337,462
30-59 Days	1,169	2,961
60-89 Days	5,040	2,646
90+ Days	1,082	1,627
Total	7,291	7,234
Nonaccrual loans	20,965	14,278
Total Loans	372,068	358,974
Commercial, industrial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	177,862	179,907
30-59 Days	21	113
60-89 Days		1,127
90+ Days	102	100
Total	123	1,340
Nonaccrual loans	1,397	1,447
Total Loans	179,382	182,694
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	11,262	12,917
30-59 Days	384	287
60-89 Days	51	116
90+ Days	28	107
Total	463	510
Total Loans	$ 11,725	$ 13,427