Loans, Major Classifications of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 778,472	$ 770,701
Deferred net origination costs (fees)	242	237
Total Loans Receivable	778,714	770,938
Less allowance for loan losses	3,150	3,129
Loans, net	775,564	767,809
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	45,324	45,275
Total Loans Receivable	45,337	45,287
Commercial, secured by real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	430,179	419,633
Total Loans Receivable	429,857	419,320
Residential real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	271,812	273,139
Total Loans Receivable	272,261	273,581
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	17,925	18,510
Total Loans Receivable	18,019	18,599
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	12,589	13,479
Total Loans Receivable	12,597	13,486
Other Loans, Including Deposit Overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	643	665
Total Loans Receivable	$ 643	$ 665