Loans, Part V (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015 rating	Dec. 31, 2014
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	$ 90,065	$ 72,007
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	90,065	72,007
Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	402,180	385,912
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	402,180	385,912
Commercial and Industrial
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	61,715	62,369
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	61,715	62,369
Commercial RE
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	158,426	154,672
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	158,426	154,672
RE Construction and Development Loans
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	147,292	137,158
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	147,292	137,158
Agricultural
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	34,747	31,713
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	34,747	31,713
Residential mortgages
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	77,067	59,095
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	77,067	59,095
Home Improvement and Home Equity
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,086	1,110
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,086	1,110
Installment
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	11,912	11,802
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	11,912	11,802
Grades 1 and 2 | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	400	591
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	400	591
Grades 1 and 2 | Commercial and Industrial
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	400	591
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	400	591
Grades 1 and 2 | Commercial RE
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 | RE Construction and Development Loans
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 | Agricultural
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 3 | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	8,794	7,595
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	8,794	7,595
Grade 3 | Commercial and Industrial
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	4,011	2,012
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	4,011	2,012
Grade 3 | Commercial RE
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	4,783	4,808
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	4,783	4,808
Grade 3 | RE Construction and Development Loans
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	775
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	775
Grade 3 | Agricultural
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 4 and 5 – pass | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	365,126	348,775
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	365,126	348,775
Grades 4 and 5 – pass | Commercial and Industrial
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	55,242	58,179
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	55,242	58,179
Grades 4 and 5 – pass | Commercial RE
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	149,491	144,230
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	149,491	144,230
Grades 4 and 5 – pass | RE Construction and Development Loans
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	125,759	114,766
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	125,759	114,766
Grades 4 and 5 – pass | Agricultural
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	34,634	31,600
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	34,634	31,600
Grade 6 – special mention | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	113	1,550
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	113	1,550
Grade 6 – special mention | Commercial and Industrial
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	342
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	342
Grade 6 – special mention | Commercial RE
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	0	1,095
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	0	1,095
Grade 6 – special mention | RE Construction and Development Loans
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 | Agricultural
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	113	113
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	113	113
Grade 7 – substandard | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	27,747	27,401
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	27,747	27,401
Grade 7 – substandard | Commercial and Industrial
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	2,062	1,245
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	2,062	1,245
Grade 7 – substandard | Commercial RE
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	4,152	4,539
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	4,152	4,539
Grade 7 – substandard | RE Construction and Development Loans
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	21,533	21,617
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	21,533	21,617
Grade 7 – substandard | Agricultural
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 8 – doubtful | Commercial Risk, Construction, and Other Non-Consumer Loans [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 8 – doubtful | Commercial and Industrial
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 8 – doubtful | Commercial RE
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 8 – doubtful | RE Construction and Development Loans
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 8 – doubtful | Agricultural
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
Not graded
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	65,905	49,532
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	65,905	49,532
Not graded | Residential mortgages
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	55,166	38,207
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	55,166	38,207
Not graded | Home Improvement and Home Equity
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,014	1,038
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	1,014	1,038
Not graded | Installment
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	9,725	10,287
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	9,725	10,287
Pass
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	19,604	18,782
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	19,604	18,782
Pass | Residential mortgages
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	18,652	17,887
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	18,652	17,887
Pass | Home Improvement and Home Equity
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	30	30
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	30	30
Pass | Installment
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	922	865
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	922	865
Special Mention
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	215	216
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	215	216
Special Mention | Residential mortgages
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	215	216
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	215	216
Special Mention | Home Improvement and Home Equity
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 | Installment
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
Substandard
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	4,341	3,477
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	4,341	3,477
Substandard | Residential mortgages
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	3,034	2,785
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	3,034	2,785
Substandard | Home Improvement and Home Equity
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	42	42
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	42	42
Substandard | Installment
Credit risk ratings for commercial, construction, and other non-consumer related loans [Abstract]
Total	1,265	650
Credit risk ratings for consumer related loans and other homogenous loans [Abstract]
Total	$ 1,265	$ 650
Minimum | Grades 4 and 5 – pass
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	3 years
Maximum | Grades 4 and 5 – pass
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	4 years