Loans, Major Classifications of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 811,426	$ 770,701
Deferred net origination costs (fees)	236	237
Total Loans Receivable	811,662	770,938
Less allowance for loan losses	3,798	3,129
Loans, net	807,864	767,809
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	40,097	45,275
Total Loans Receivable	40,112	45,287
Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	467,512	419,633
Total Loans Receivable	467,169	419,320
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	268,574	273,139
Total Loans Receivable	269,041	273,581
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	18,752	18,510
Total Loans Receivable	18,842	18,599
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	15,872	13,479
Total Loans Receivable	15,879	13,486
Other loans, including deposit overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	619	665
Total Loans Receivable	$ 619	$ 665