Loans, Past Due And Accruing Restructured (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Non-accrual loans	$ 3,328	$ 1,723
Past-due 90 days or more and still accruing	99	559
Total non-accrual and past-due 90 days or more and still accruing	3,427	2,282
Accruing restructured loans	13,955	13,723
Total	17,382	16,005
Commercial and Industrial [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Non-accrual loans	0	0
Commercial Secured By Real Estate [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Non-accrual loans	1,759	876
Agricultural [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Non-accrual loans	413	48
Residential Real Estate [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Non-accrual loans	1,144	799
Consumer [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Non-accrual loans	$ 12	$ 0