Loans, Part V (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Rating	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Number of risk rating approaches	2
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	$ 332,838	$ 356,059
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	332,838	356,059
Commercial and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	72,129	119,174
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	72,129	119,174
Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	133,599	120,356
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	133,599	120,356
Construction [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	90,941	71,046
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	90,941	71,046
Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	36,169	45,483
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	36,169	45,483
Consumer Related Loans and Other Homogenous Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	67,219	52,656
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	67,219	52,656
Single Family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	55,016	39,682
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	55,016	39,682
Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,319	1,859
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,319	1,859
Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	10,884	11,115
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	10,884	11,115
Grades 1 and 2 [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,004	765
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,004	765
Grades 1 and 2 [Member] | Commercial and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	825	725
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	825	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] | Construction [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	119	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	119	0
Grades 1 and 2 [Member] | Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	60	40
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	60	40
Grade 3 [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	8,874	8,080
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	8,874	8,080
Grade 3 [Member] | Commercial and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	2,071	157
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	2,071	157
Grade 3 [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	5,947	7,026
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	5,947	7,026
Grade 3 [Member] | Construction [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	856	897
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	856	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]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	293,761	303,116
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	293,761	303,116
Grade 4 and 5 - Pass [Member] | Minimum [Member]
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	3 years
Grade 4 and 5 - Pass [Member] | Maximum [Member]
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	4 years
Grade 4 and 5 - Pass [Member] | Commercial and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	66,110	108,362
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	66,110	108,362
Grade 4 and 5 - Pass [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	116,606	101,850
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	116,606	101,850
Grade 4 and 5 - Pass [Member] | Construction [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	75,072	49,242
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	75,072	49,242
Grade 4 and 5 - Pass [Member] | Agricultural [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	35,973	43,662
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	35,973	43,662
Grade 6 - Special Mention [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	2,008	10,734
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	2,008	10,734
Grade 6 - Special Mention [Member] | Commercial and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,867	4,610
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,867	4,610
Grade 6 - Special Mention [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	6,124
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	6,124
Grade 6 - Special Mention [Member] | Construction [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	141	0
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	141	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	27,191	33,364
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	27,191	33,364
Grade 7 - Substandard [Member] | Commercial and Lease Financing [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,256	5,320
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,256	5,320
Grade 7 - Substandard [Member] | Commercial RE [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	11,046	5,356
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	11,046	5,356
Grade 7 - Substandard [Member] | Construction [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	14,753	20,907
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	14,753	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
Not graded [Member] | Consumer Related Loans and Other Homogenous Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	41,257	30,306
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	41,257	30,306
Not graded [Member] | Single Family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	30,727	19,173
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	30,727	19,173
Not graded [Member] | Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,309	1,801
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,309	1,801
Not graded [Member] | Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	9,221	9,332
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	9,221	9,332
Pass [Member] | Consumer Related Loans and Other Homogenous Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	21,994	19,729
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	21,994	19,729
Pass [Member] | Single Family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	20,572	18,471
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	20,572	18,471
Pass [Member] | Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	22
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	22
Pass [Member] | Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,422	1,236
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,422	1,236
Special Mention [Member] | Consumer Related Loans and Other Homogenous Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	958	869
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	958	869
Special Mention [Member] | Single Family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	909	446
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	909	446
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	49	423
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	49	423
Substandard [Member] | Consumer Related Loans and Other Homogenous Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	3,010	1,752
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	3,010	1,752
Substandard [Member] | Single Family Residential [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	2,808	1,592
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	2,808	1,592
Substandard [Member] | Home Improvement and Home Equity [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	10	36
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	10	36
Substandard [Member] | Installment [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	192	124
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	$ 192	$ 124