Loans, Past Due And Accruing Restructured (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	$ 2,697	$ 1,723
Past-due 90 days or more and still accruing	369	559
Total non-accrual and past-due 90 days or more and still accruing	3,066	2,282
Accruing restructured loans	13,855	13,723
Total	16,921	16,005
Commercial and Industrial [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	0	0
Commercial Secured By Real Estate [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	1,362	876
Agricultural [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	384	48
Residential Real Estate [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	951	799
Consumer [Member]
Financing receivables, non accruals, past due, and accruing restructured loans [Line Items]
Total non-accrual loans	$ 0	$ 0