Loans and Leases, Part V (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Number of risk rating approaches	2
Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	$ 338,193	$ 371,543
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	338,193	371,543
Commerical and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	124,259	166,475
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	124,259	166,475
Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	124,755	118,857
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	124,755	118,857
RE Construction and Development [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	66,301	50,400
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	66,301	50,400
Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	22,878	35,811
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	22,878	35,811
Consumer related loans and Other Homogenous Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	37,884	37,172
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	37,884	37,172
Single family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	24,201	24,031
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	24,201	24,031
Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,768	1,859
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,768	1,859
Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	11,915	11,282
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	11,915	11,282
Grades 1 and 2 [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	554	765
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	554	765
Grades 1 and 2 [Member] | Commerical and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	534	725
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	534	725
Grades 1 and 2 [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	0
Grades 1 and 2 [Member] | RE Construction and Development [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	0
Grades 1 and 2 [Member] | Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	20	40
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	20	40
Grade 3 [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	7,649	8,107
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	7,649	8,107
Grade 3 [Member] | Commerical and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,303	184
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,303	184
Grade 3 [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	5,480	7,026
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	5,480	7,026
Grade 3 [Member] | RE Construction and Development [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	866	897
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	866	897
Grade 3 [Member] | Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	0
Grade 4 and 5 - pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	3 years
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	293,806	316,869
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	293,806	316,869
Grade 4 and 5 - pass [Member] | Commerical and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	110,282	149,815
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	110,282	149,815
Grade 4 and 5 - pass [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	112,012	104,468
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	112,012	104,468
Grade 4 and 5 - pass [Member] | RE Construction and Development [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	48,790	28,596
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	48,790	28,596
Grade 4 and 5 - pass [Member] | Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	22,722	33,990
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	22,722	33,990
Grade 6 - special mention [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	11,339	11,180
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	11,339	11,180
Grade 6 - special mention [Member] | Commerical and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	10,425	10,431
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	10,425	10,431
Grade 6 - special mention [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	914	749
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	914	749
Grade 6 - special mention [Member] | RE Construction and Development [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	0
Grade 6 - special mention [Member] | Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	0
Grade 7 - substandard [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	24,845	34,622
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	24,845	34,622
Grade 7 - substandard [Member] | Commerical and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,715	5,320
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,715	5,320
Grade 7 - substandard [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	6,349	6,614
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	6,349	6,614
Grade 7 - substandard [Member] | RE Construction and Development [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	16,645	20,907
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	16,645	20,907
Grade 7 - substandard [Member] | Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	136	1,781
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	136	1,781
Grade 8 - doubtful [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0
Grade 8 - doubtful [Member] | Commerical and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0
Grade 8 - doubtful [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0
Grade 8 - doubtful [Member] | RE Construction and Development [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0
Grade 8 - doubtful [Member] | Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0
Not graded [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	28,900	30,274
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	28,900	30,274
Not graded [Member] | Single family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	17,245	18,858
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	17,245	18,858
Not graded [Member] | Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,736	1,801
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,736	1,801
Not graded [Member] | Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	9,919	9,615
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	9,919	9,615
Pass [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	6,428	5,981
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	6,428	5,981
Pass [Member] | Single family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	5,019	4,796
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	5,019	4,796
Pass [Member] | Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	21	22
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	21	22
Pass [Member] | Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,388	1,163
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,388	1,163
Special Mention [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	103	423
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	103	423
Special Mention [Member] | Single family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	0
Special Mention [Member] | Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	0
Special Mention [Member] | Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	103	423
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	103	423
Substandard [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	2,453	494
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	2,453	494
Substandard [Member] | Single family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,937	377
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,937	377
Substandard [Member] | Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	11	36
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	11	36
Substandard [Member] | Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	505	81
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	$ 505	$ 81