Loans, Part V (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) rating	Dec. 31, 2015 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Number of risk rating approaches | rating	2
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	$ 129,907	$ 94,205
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	129,907	94,205
Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	429,692	421,113
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	429,692	421,113
Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	47,713	55,826
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	47,713	55,826
Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	197,533	182,554
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	197,533	182,554
Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	131,177	130,596
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	131,177	130,596
Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	53,269	52,137
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	53,269	52,137
Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	91,852	68,811
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	91,852	68,811
Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	627	867
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	627	867
Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	37,428	24,527
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	37,428	24,527
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	398	569
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	398	569
Grades 1 and 2 | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	323	519
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	323	519
Grades 1 and 2 | Commercial Real Estate
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 | Real Estate 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	75	50
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	75	50
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	6,163	10,972
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	6,163	10,972
Grade 3 | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	339	5,008
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	339	5,008
Grade 3 | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	5,824	5,964
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	5,824	5,964
Grade 3 | Real Estate 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 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	395,846	373,766
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	395,846	373,766
Grades 4 and 5 – pass | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	41,317	44,341
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	41,317	44,341
Grades 4 and 5 – pass | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	189,929	173,731
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	189,929	173,731
Grades 4 and 5 – pass | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	111,406	103,607
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	111,406	103,607
Grades 4 and 5 – pass | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	53,194	52,087
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	53,194	52,087
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	2,594	2,562
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	2,594	2,562
Grade 6 – special mention | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	1,058	946
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	1,058	946
Grade 6 – special mention | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	624	1,616
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	624	1,616
Grade 6 – special mention | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	912	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	912	0
Grade 6 – special mention | 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 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	24,691	33,244
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	24,691	33,244
Grade 7 – substandard | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	4,676	5,012
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	4,676	5,012
Grade 7 – substandard | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	1,156	1,243
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	1,156	1,243
Grade 7 – substandard | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	18,859	26,989
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	18,859	26,989
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 Real Estate
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 | Real Estate 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	107,147	71,187
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	107,147	71,187
Not graded | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	72,228	47,135
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	72,228	47,135
Not graded | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	600	839
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	600	839
Not graded | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	34,319	23,213
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	34,319	23,213
Pass
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	19,625	20,158
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	19,625	20,158
Pass | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	17,463	19,466
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	17,463	19,466
Pass | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	27	28
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	27	28
Pass | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	2,135	664
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	2,135	664
Special Mention
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 | Residential Mortgages
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 | 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	2,170	2,860
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	2,170	2,860
Substandard | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	2,161	2,210
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	2,161	2,210
Substandard | 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
Substandard | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	9	650
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	9	650
Doubtful
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	965	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	965	0
Doubtful | Residential Mortgages
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
Doubtful | 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
Doubtful | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	965	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	$ 965	$ 0
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