Allowance for Loan Losses, evaluated for impairment (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Ending allowance balance [Abstract]
Individually evaluated for impairment	$ 2,900		$ 4,493
Collectively evaluated for impairment	8,810		8,437
Total ending allowance balance	11,710	11,806	12,930	12,737
Ending loan balance [Abstract]
Individually evaluated for impairment	41,379		45,621
Collectively evaluated for impairment	696,815		691,199
Total Loans	738,194	751,218	736,820
Commercial [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	423		456
Collectively evaluated for impairment	588		551
Total ending allowance balance	1,011	1,017	1,007	981
Ending loan balance [Abstract]
Individually evaluated for impairment	1,469		1,554
Collectively evaluated for impairment	42,510		51,352
Total Loans	43,979	48,107	52,906
Agricultural [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	297		300
Total ending allowance balance	297	294	300	296
Ending loan balance [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	12,654		7,856
Total Loans	12,654	10,666	7,856
Commercial Construction [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	1,548		1,493
Collectively evaluated for impairment	541		296
Total ending allowance balance	2,089	1,782	1,789	1,890
Ending loan balance [Abstract]
Individually evaluated for impairment	7,683		9,442
Collectively evaluated for impairment	46,925		42,652
Total Loans	54,608	52,739	52,094
Residential Construction [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	138		138
Total ending allowance balance	138	138	138	138
Ending loan balance [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	9,779		7,570
Total Loans	9,779	6,549	7,570
Commercial Real Estate [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	407		1,426
Collectively evaluated for impairment	3,873		3,888
Total ending allowance balance	4,280	4,379	5,314	5,163
Ending loan balance [Abstract]
Individually evaluated for impairment	26,192		25,175
Collectively evaluated for impairment	311,643		303,677
Total Loans	337,835	341,783	328,852
Residential Real Estate [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	289		1,118
Collectively evaluated for impairment	2,740		2,334
Total ending allowance balance	3,029	3,278	3,452	3,406
Ending loan balance [Abstract]
Individually evaluated for impairment	4,412		7,173
Collectively evaluated for impairment	197,747		197,485
Total Loans	202,159	206,258	204,658
Farmland [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	233		0
Collectively evaluated for impairment	80		302
Total ending allowance balance	313	312	302	291
Ending loan balance [Abstract]
Individually evaluated for impairment	1,614		2,277
Collectively evaluated for impairment	46,272		45,931
Total Loans	47,886	47,035	48,208
Consumer [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	189		282
Total ending allowance balance	189	243	282	228
Ending loan balance [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	23,693		28,379
Total Loans	23,693	25,676	28,379
Other [Member]
Ending allowance balance [Abstract]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	364		346
Total ending allowance balance	364	363	346	344
Ending loan balance [Abstract]
Individually evaluated for impairment	9		0
Collectively evaluated for impairment	5,592		6,297
Total Loans	$ 5,601	$ 12,405	$ 6,297