Loans, Impaired Loans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Recorded Investment
With no related allowance recorded	$ 30,330		$ 30,330		$ 13,311
With an allowance recorded	6,312		6,312		9,562
Total	36,642		36,642		22,873
Unpaid Principal Balance
With no related allowance recorded	40,305		40,305		15,815
With an allowance recorded	6,846		6,846		9,685
Total	47,151		47,151		25,500
Related Allowance
With an allowance recorded	989		989		1,032
Total	989		989		1,032
Average Recorded Investment
With no related allowance recorded	30,779	14,741	31,548	15,050
With an allowance recorded	6,190	9,043	5,815	8,892
Total	36,969	23,784	37,363	23,942
Interest Income Recognized
With no related allowance recorded	485	212	898	416
With an allowance recorded	13	69	86	140
Total	498	281	984	556
Commercial and Industrial [Member]
Recorded Investment
With no related allowance recorded	2,240		2,240		332
With an allowance recorded	585		585		165
Total	2,825		2,825		497
Unpaid Principal Balance
With no related allowance recorded	3,627		3,627		531
With an allowance recorded	647		647		270
Total	4,274		4,274		801
Related Allowance
With an allowance recorded	265		265		2
Total	265		265		2
Average Recorded Investment
With no related allowance recorded	2,057	774	2,088	943
With an allowance recorded	494	185	291	204
Total	2,551	959	2,379	1,147
Interest Income Recognized
With no related allowance recorded	38	9	70	24
With an allowance recorded	2	0	13	1
Total	40	9	83	25
Commercial Secured By Real Estate [Member]
Recorded Investment
With no related allowance recorded	22,810		22,810		10,883
With an allowance recorded	4,358		4,358		7,725
Total	27,168		27,168		18,608
Unpaid Principal Balance
With no related allowance recorded	28,337		28,337		12,317
With an allowance recorded	4,723		4,723		7,725
Total	33,060		33,060		20,042
Related Allowance
With an allowance recorded	552		552		760
Total	552		552		760
Average Recorded Investment
With no related allowance recorded	23,282	11,965	23,839	12,001
With an allowance recorded	4,344	7,581	4,228	7,485
Total	27,626	19,546	28,067	19,486
Interest Income Recognized
With no related allowance recorded	327	155	616	300
With an allowance recorded	0	60	50	123
Total	327	215	666	423
Residential Real Estate [Member]
Recorded Investment
With no related allowance recorded	4,394		4,394		2,096
With an allowance recorded	1,369		1,369		1,645
Total	5,763		5,763		3,741
Unpaid Principal Balance
With no related allowance recorded	6,535		6,535		2,967
With an allowance recorded	1,476		1,476		1,663
Total	8,011		8,011		4,630
Related Allowance
With an allowance recorded	172		172		270
Total	172		172		270
Average Recorded Investment
With no related allowance recorded	4,528	1,986	4,682	2,085
With an allowance recorded	1,352	1,255	1,296	1,185
Total	5,880	3,241	5,978	3,270
Interest Income Recognized
With no related allowance recorded	101	42	177	86
With an allowance recorded	11	8	23	15
Total	112	50	200	101
Consumer [Member]
Recorded Investment
With no related allowance recorded	233		233		0
With an allowance recorded					27
Total	233		233		27
Unpaid Principal Balance
With no related allowance recorded	393		393		0
With an allowance recorded					27
Total	393		393		27
Related Allowance
With an allowance recorded					0
Total	0		0		0
Average Recorded Investment
With no related allowance recorded	234	0	246	0
With an allowance recorded	0	22	0	18
Total	234	22	246	18
Interest Income Recognized
With no related allowance recorded	2	0	9	0
With an allowance recorded	0	1	0	1
Total	2	1	9	1
Agricultural [Member]
Recorded Investment
With no related allowance recorded	115		115
Total	115		115
Unpaid Principal Balance
With no related allowance recorded	639		639
Total	639		639
Related Allowance
Total	0		0
Average Recorded Investment
With no related allowance recorded	118	16	129	21
Total	118	16	129	21
Interest Income Recognized
With no related allowance recorded	7	6	9	6
Total	7	6	9	6
Other Loans [Member]
Recorded Investment
With no related allowance recorded	538		538
Total	538		538
Unpaid Principal Balance
With no related allowance recorded	774		774
Total	774		774
Related Allowance
Total	0		0
Average Recorded Investment
With no related allowance recorded	560	0	564	0
Total	560	0	564	0
Interest Income Recognized
With no related allowance recorded	10	0	17	0
Total	$ 10	$ 0	$ 17	$ 0