Allowance for Loan Losses (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	$ 6,810	$ 13,693
60-89 Days	7,107	6,466
90 Days	24,935	23,566
Total past due	38,852	43,725
Current	1,329,403	1,291,660
Total loans	1,368,255	1,335,385
90 Days and still accruing	893	500
Nonaccrual loans	68,855	75,275
PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	513	181
60-89 Days	345	115
90 Days	197	434
Total past due	1,055	730
Current	106,940	133,563
Total loans	107,995	134,293
90 Days and still accruing		420
Nonaccrual loans	3,024	110
RE Mortgage [Member] | Residential [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	322	1,715
60-89 Days	911	750
90 Days	2,213	3,279
Total past due	3,446	5,744
Current	116,059	112,576
Total loans	119,505	118,320
90 Days and still accruing
Nonaccrual loans	7,726	8,525
RE Mortgage [Member] | Residential [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	197
60-89 Days		76
90 Days
Total past due	197	76
Current	8,247	14,674
Total loans	8,444	14,750
90 Days and still accruing
Nonaccrual loans	75
RE Mortgage [Member] | Commercial [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	1,559	7,509
60-89 Days	4,106	1,171
90 Days	11,803	9,892
Total past due	17,468	18,572
Current	723,314	681,110
Total loans	740,782	699,682
90 Days and still accruing		500
Nonaccrual loans	40,120	43,765
RE Mortgage [Member] | Commercial [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	315	118
60-89 Days	213
90 Days	166	420
Total past due	694	538
Current	76,244	92,890
Total loans	76,938	93,428
90 Days and still accruing		420
Nonaccrual loans	2,452
Home Equity Lines [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	2,948	2,586
60-89 Days	1,604	2,629
90 Days	2,962	3,129
Total past due	7,514	8,344
Current	307,459	313,490
Total loans	314,973	321,834
90 Days and still accruing
Nonaccrual loans	7,771	8,307
Home Equity Lines [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days		63
60-89 Days	132	39
90 Days		14
Total past due	132	116
Current	17,863	20,786
Total loans	17,995	20,902
90 Days and still accruing
Nonaccrual loans	420	110
Home Equity Loans [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	142	52
60-89 Days	29	281
90 Days	268	114
Total past due	439	447
Current	13,087	13,873
Total loans	13,526	14,320
90 Days and still accruing
Nonaccrual loans	483	509
Home Equity Loans [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days
60-89 Days
90 Days
Total past due
Current	543	367
Total loans	543	367
90 Days and still accruing
Nonaccrual loans
Auto Indirect [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	101	181
60-89 Days	9	56
90 Days	100	130
Total past due	210	367
Current	6,286	10,454
Total loans	6,496	10,821
90 Days and still accruing
Nonaccrual loans	280	509
Auto Indirect [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days
60-89 Days
90 Days
Total past due
Current
Total loans
90 Days and still accruing
Nonaccrual loans
Other Consumer [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	99	46
60-89 Days	3	153
90 Days	9	5
Total past due	111	204
Current	22,559	20,066
Total loans	22,670	20,270
90 Days and still accruing
Nonaccrual loans	72	109
Other Consumer [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	1
60-89 Days
90 Days	31
Total past due	32
Current	2,820	3,041
Total loans	2,852	3,041
90 Days and still accruing
Nonaccrual loans	77
C&I [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	677	683
60-89 Days	259	1,334
90 Days	7,285	4,929
Total past due	8,221	6,946
Current	118,902	116,540
Total loans	127,123	123,486
90 Days and still accruing	893
Nonaccrual loans	7,482	7,257
C&I [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days
60-89 Days
90 Days
Total past due
Current	1,223	1,805
Total loans	1,223	1,805
90 Days and still accruing
Nonaccrual loans
Construction [Member] | Residential [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days		921
60-89 Days	96	92
90 Days	257	2,088
Total past due	353	3,101
Current	10,440	10,807
Total loans	10,793	13,908
90 Days and still accruing
Nonaccrual loans	4,354	5,627
Construction [Member] | Residential [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days
60-89 Days
90 Days
Total past due
Current
Total loans
90 Days and still accruing
Nonaccrual loans
Construction [Member] | Commercial [Member] | Originated loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days	962
60-89 Days	90
90 Days	38
Total past due	1,090
Current	11,297	12,744
Total loans	12,387	12,744
90 Days and still accruing
Nonaccrual loans	567	667
Construction [Member] | Commercial [Member] | PNCI loans [Member]
Analysis of Past Due and Nonaccrual Loans
30-59 Days
60-89 Days
90 Days
Total past due
Current
Total loans
90 Days and still accruing
Nonaccrual loans