Loans, Major Classifications of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 800,217	$ 770,701
Deferred net origination costs (fees)	248	237
Total Loans Receivable	800,465	770,938
Less allowance for loan losses	3,373	3,129
Loans, net	797,092	767,809
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	45,153	45,275
Total Loans Receivable	45,169	45,287
Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	455,654	419,633
Total Loans Receivable	455,326	419,320
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	266,625	273,139
Total Loans Receivable	267,083	273,581
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	18,545	18,510
Total Loans Receivable	18,638	18,599
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	13,605	13,479
Total Loans Receivable	13,614	13,486
Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	635	665
Total Loans Receivable	$ 635	$ 665