Loans (Details 8) (Subsequently Defaulted [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013 Number	Sep. 30, 2012 Number	Sep. 30, 2013 Number	Sep. 30, 2012 Number
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	9	4	11	5
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 633	$ 1,146	$ 938	$ 1,726
Residential Owner Occupied [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	4	0	5	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	339	0	432	0
Residential Non Owner Occupied [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	1	1	1	1
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	78	24	78	24
Commercial Real Estate Owner Occupied [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	0	0	0	0
Commercial Real Estate Non Owner Occupied [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	2	1	2
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	0	351	212	351
Agriculture Land [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	0	0	0	0
Commercial Real Estate Other Receivable [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	0	0	0	0
Commercial and Industrial [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	2	1	2	2
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	178	771	178	1,351
Home Equity and Home Improvement [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	2	0	2	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	38	0	38	0
Consumer Loan [Member]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0