Loans (Details 7) - TDRs [Member] $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) Number	Jun. 30, 2016 USD ($) Number	Jun. 30, 2017 USD ($) Number	Jun. 30, 2016 USD ($) Number
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	18	12	29	20
Troubled Debt Restructurings, Recorded Investment | $	$ 8,169	$ 1,735	$ 8,544	$ 2,140
1-4 Family Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	4	4	8	5
Troubled Debt Restructurings, Recorded Investment | $	$ 413	$ 115	$ 512	$ 124
1-4 Family Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	1	0	3	2
Troubled Debt Restructurings, Recorded Investment | $	$ 23	$ 0	$ 106	$ 124
Multi Family Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	0	1	0	1
Troubled Debt Restructurings, Recorded Investment | $	$ 0	$ 55	$ 0	$ 55
Commercial Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	0	0	1	0
Troubled Debt Restructurings, Recorded Investment | $	$ 0	$ 0	$ 117	$ 0
Commercial Real Estate Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	0	2	0	2
Troubled Debt Restructurings, Recorded Investment | $	$ 0	$ 671	$ 0	$ 671
Agriculture Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	2	0	2	0
Troubled Debt Restructurings, Recorded Investment | $	$ 1,450	$ 0	$ 1,450	$ 0
Commercial Real Estate Other Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	2	0	2	0
Troubled Debt Restructurings, Recorded Investment | $	$ 196	$ 0	$ 196	$ 0
Other Commercial Working Capital [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	5	1	5	1
Troubled Debt Restructurings, Recorded Investment | $	$ 2,563	$ 226	$ 2,563	$ 226
Commercial Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	3	1	4	1
Troubled Debt Restructurings, Recorded Investment | $	$ 3,467	$ 606	$ 3,513	$ 606
Home Equity and Home Improvement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	1	2	2	5
Troubled Debt Restructurings, Recorded Investment | $	$ 57	$ 56	$ 82	$ 325
Consumer Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans | Number	0	1	2	3
Troubled Debt Restructurings, Recorded Investment | $	$ 0	$ 6	$ 5	$ 9