Loans (Details 6) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	$ 1,677,977	$ 1,639,185
30-59 days	2,292	2,204
60-89 days	4,403	3,247
90+ days	5,450	7,331
Total Past Due	12,145	12,782
Total Non Accrual	18,702	24,135
Residential Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	138,476	141,597
30-59 days	118	39
60-89 days	242	1,079
90+ days	537	365
Total Past Due	897	1,483
Total Non Accrual	1,690	1,702
Residential Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	63,262	62,991
30-59 days	378	110
60-89 days	362	105
90+ days	578	578
Total Past Due	1,318	793
Total Non Accrual	1,548	1,625
One To Four Family Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	201,738	204,588
30-59 days	496	149
60-89 days	604	1,184
90+ days	1,115	943
Total Past Due	2,215	2,276
Total Non Accrual	3,238	3,327
Multi Family Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	156,869	156,413
30-59 days	0	247
60-89 days	2,138	0
90+ days	245	0
Total Past Due	2,383	247
Total Non Accrual	2,403	2,546
Commercial Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	313,484	299,500
30-59 days	1,188	163
60-89 days	1,513	1,566
90+ days	1,572	1,753
Total Past Due	4,273	3,482
Total Non Accrual	4,377	7,004
Commercial Real Estate Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	262,278	243,341
30-59 days	110	119
60-89 days	0	416
90+ days	662	1,308
Total Past Due	772	1,843
Total Non Accrual	1,887	2,582
Agriculture Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	98,781	93,529
30-59 days	164	0
60-89 days	0	14
90+ days	12	0
Total Past Due	176	14
Total Non Accrual	462	686
Commercial Real Estate Other Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	39,524	43,835
30-59 days	0	155
60-89 days	0	0
90+ days	407	258
Total Past Due	407	413
Total Non Accrual	2,267	2,359
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	714,067	680,205
30-59 days	1,462	437
60-89 days	1,513	1,996
90+ days	2,653	3,319
Total Past Due	5,628	5,752
Total Non Accrual	8,993	12,631
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	84,309	73,722
30-59 days	0	0
60-89 days	0	0
90+ days	0	0
Total Past Due	0	0
Total Non Accrual	0	0
Commercial Working Capital [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	139,101	135,009
30-59 days	10	0
60-89 days	69	0
90+ days	340	951
Total Past Due	419	951
Total Non Accrual	355	1,103
Commercial Loans Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	255,899	262,982
30-59 days	233	67
60-89 days	23	10
90+ days	1,067	2,012
Total Past Due	1,323	2,089
Total Non Accrual	3,163	3,897
Commercial Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	395,000	397,991
30-59 days	243	67
60-89 days	92	10
90+ days	1,407	2,963
Total Past Due	1,742	3,040
Total Non Accrual	3,518	5,000
Home Equity and Home Improvement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	111,060	110,940
30-59 days	75	1,236
60-89 days	56	0
90+ days	30	106
Total Past Due	161	1,342
Total Non Accrual	534	619
Consumer Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	14,934	15,326
30-59 days	16	68
60-89 days	0	57
90+ days	0	0
Total Past Due	16	125
Total Non Accrual	$ 16	$ 12