Loans, Part II (Details) $ in Thousands	6 Months Ended
Loans, Part II (Details) $ in Thousands	Jun. 30, 2017 USD ($) payment	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	$ 811	$ 3,103
Total Loans	566,429	566,656
Total Loans	567,240	569,759	$ 557,209
Accruing Loans 90 or More Days Past Due	$ 87	1,250
Minimum period of default	90 days
Number of monthly payments to demonstrate repayment ability \| payment	6
Nonaccrual loans balances [Abstract]
Total Loans	$ 5,508	7,264
Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	811	722
Total Loans	51,660	48,283
Total Loans	52,471	49,005
Accruing Loans 90 or More Days Past Due	87	0
Nonaccrual loans balances [Abstract]
Total Loans	561	565
Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	531	432
Total Loans	50,547	47,032
Total Loans	51,078	47,464
Accruing Loans 90 or More Days Past Due	87	0
Nonaccrual loans balances [Abstract]
Total Loans	281	275
Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	280	290
Total Loans	1,113	1,251
Total Loans	1,393	1,541
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	280	290
Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	282,255	288,200
Total Loans	282,255	288,200
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	473	1,126
Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	202,364	200,213
Total Loans	202,364	200,213
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	473	1,126
Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	79,319	87,388
Total Loans	79,319	87,388
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0
Home Improvement and Home Equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	572	599
Total Loans	572	599
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0
Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	965
Total Loans	49,333	43,984
Total Loans	49,333	44,949
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	965
Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	1,416
Total Loans	124,749	129,271
Total Loans	124,749	130,687
Accruing Loans 90 or More Days Past Due	0	1,250
Nonaccrual loans balances [Abstract]
Total Loans	4,474	4,608
Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	58,432	56,918
Total Loans	58,432	56,918
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0
Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	965
Total Loans	49,146	43,785
Total Loans	49,146	44,750
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	965
Overdraft Protection Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	46	48
Total Loans	46	48
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0
Overdrafts
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	141	151
Total Loans	141	151
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0
Loans 30-60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	422	166
Loans 30-60 Days Past Due \| Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	422	0
Loans 30-60 Days Past Due \| Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	422	0
Loans 30-60 Days Past Due \| Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Home Improvement and Home Equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	166
Loans 30-60 Days Past Due \| Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Overdraft Protection Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due \| Overdrafts
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	22	432
Loans 61-89 Days Past Due \| Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	22	432
Loans 61-89 Days Past Due \| Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	22	432
Loans 61-89 Days Past Due \| Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Home Improvement and Home Equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Overdraft Protection Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 61-89 Days Past Due \| Overdrafts
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	367	2,505
Loans 90 or More Days Past Due \| Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	367	290
Loans 90 or More Days Past Due \| Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	87	0
Loans 90 or More Days Past Due \| Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	280	290
Loans 90 or More Days Past Due \| Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 90 or More Days Past Due \| Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 90 or More Days Past Due \| Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 90 or More Days Past Due \| Home Improvement and Home Equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 90 or More Days Past Due \| Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	965
Loans 90 or More Days Past Due \| Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	1,250
Loans 90 or More Days Past Due \| Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 90 or More Days Past Due \| Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	965
Loans 90 or More Days Past Due \| Overdraft Protection Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 90 or More Days Past Due \| Overdrafts
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	$ 0	$ 0