Loans, Part II (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($) payment	Dec. 31, 2016 USD ($)	Mar. 31, 2016 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	$ 1,990	$ 3,103
Total Loans	544,851	566,656
Total Loans	546,841	569,759	$ 514,678
Accruing Loans 90 or More Days Past Due	$ 0	1,250
Minimum period of default	90 days
Number of monthly payments to demonstrate repayment ability | payment	6
Nonaccrual loans balances [Abstract]
Total Loans	$ 7,176	7,264
Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	1,025	722
Total Loans	46,266	49,260
Total Loans	47,291	49,982
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	557	565
Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	703	432
Total Loans	44,811	48,009
Total Loans	45,514		48,441
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	275	275
Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	322	290
Total Loans	1,455	1,251
Total Loans	1,777		1,541
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	282	290
Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	279,166	287,797
Total Loans	279,166	287,797
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	1,091	1,126
Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	199,348	199,810
Total Loans	199,348		199,810
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	1,091	1,126
Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	79,233	87,388
Total Loans	79,233		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	585	599
Total Loans	585		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	965	965
Total Loans	45,570	43,984
Total Loans	46,535	44,949
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	965	965
Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	1,416
Total Loans	121,397	128,697
Total Loans	121,397		130,113
Accruing Loans 90 or More Days Past Due	0	1,250
Nonaccrual loans balances [Abstract]
Total Loans	4,563	4,608
Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Total Loans	52,452	56,918
Total Loans	52,452		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	965	965
Total Loans	45,232	43,785
Total Loans	46,197		44,750
Accruing Loans 90 or More Days Past Due	0	0
Nonaccrual loans balances [Abstract]
Total Loans	965	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	292	151
Total Loans	292		$ 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	39	166
Loans 30-60 Days Past Due | Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	39	0
Loans 30-60 Days Past Due | Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0
Loans 30-60 Days Past Due | Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	39	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	428	432
Loans 61-89 Days Past Due | Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	428	432
Loans 61-89 Days Past Due | Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	428	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	1,523	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	558	290
Loans 90 or More Days Past Due | Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	275	0
Loans 90 or More Days Past Due | Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	283	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	965	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	965	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