Loans, Loans Portfolio Aging Analysis (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 3,091	$ 2,488
60-89 Days Past Due	608	916
Greater Than 90 Days Past Due	4,373	2,935
Total Past Due	8,072	6,339
Current	683,647	568,015
Balance, end of period	691,719	574,354	556,314
Total Loans Greater Than 90 Days and Accruing	130	250
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	963	277
60-89 Days Past Due	0	0
Greater Than 90 Days Past Due	261	144
Total Past Due	1,224	421
Current	37,658	28,885
Balance, end of period	38,882	29,306	33,277
Total Loans Greater Than 90 Days and Accruing	0	0
Commercial Secured By Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	878	951
60-89 Days Past Due	377	582
Greater Than 90 Days Past Due	3,055	1,174
Total Past Due	4,310	2,707
Current	373,129	311,206
Balance, end of period	377,439	313,913	296,213
Total Loans Greater Than 90 Days and Accruing	69	0
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,141	1,131
60-89 Days Past Due	184	299
Greater Than 90 Days Past Due	974	1,604
Total Past Due	2,299	3,034
Current	241,948	212,808
Balance, end of period	244,247	215,842	210,150
Total Loans Greater Than 90 Days and Accruing	45	236
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	52	38
60-89 Days Past Due	47	35
Greater Than 90 Days Past Due	16	13
Total Past Due	115	86
Current	19,976	12,644
Balance, end of period	20,091	12,730	13,436
Total Loans Greater Than 90 Days and Accruing	16	14
Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Greater Than 90 Days Past Due	67	0
Total Past Due	67	0
Current	8,399	2,472
Balance, end of period	8,466	2,472	2,838
Total Loans Greater Than 90 Days and Accruing	0	0
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	57	91
60-89 Days Past Due	0	0
Greater Than 90 Days Past Due	0	0
Total Past Due	57	91
Current	2,537	0
Balance, end of period	2,594	91	400
Total Loans Greater Than 90 Days and Accruing	$ 0	$ 0