Loans, Net Summary of loan classifications by class of loan (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	$ 728,752	[1]	$ 728,480	[1]
Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	671,646		670,431
Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	36,504		22,145
Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	19,804		33,366
Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	798		2,538
Loss [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		0
Real Estate Loans Construction [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	32,057		36,025
Real Estate Loans Construction [Member] | Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	24,637		31,143
Real Estate Loans Construction [Member] | Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	6,818		2,245
Real Estate Loans Construction [Member] | Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	602		2,090
Real Estate Loans Construction [Member] | Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		547
Real Estate Loans Construction [Member] | Loss [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		0
Real Estate Loans Secured by Farmland [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	17,332		16,578
Real Estate Loans Secured by Farmland [Member] | Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	8,824		8,067
Real Estate Loans Secured by Farmland [Member] | Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	7,903		7,903
Real Estate Loans Secured by Farmland [Member] | Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	605		608
Real Estate Loans Secured by Farmland [Member] | Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		0
Real Estate Loans Secured by Farmland [Member] | Loss [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		0
Real Estate Loans Secured by 1 - 4 Family Residential [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	267,216		273,384
Real Estate Loans Secured by 1 - 4 Family Residential [Member] | Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	256,919		253,654
Real Estate Loans Secured by 1 - 4 Family Residential [Member] | Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	2,012		1,732
Real Estate Loans Secured by 1 - 4 Family Residential [Member] | Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	7,740		16,158
Real Estate Loans Secured by 1 - 4 Family Residential [Member] | Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	545		1,840
Real Estate Loans Secured by 1 - 4 Family Residential [Member] | Loss [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		0
Other Real Estate Loans [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	254,686		260,333
Other Real Estate Loans [Member] | Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	230,626		238,811
Other Real Estate Loans [Member] | Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	16,618		9,475
Other Real Estate Loans [Member] | Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	7,442		12,047
Other Real Estate Loans [Member] | Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		0
Other Real Estate Loans [Member] | Loss [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		0
Commercial [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	140,555		129,554
Commercial [Member] | Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	136,787		126,246
Commercial [Member] | Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	3,129		775
Commercial [Member] | Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	389		2,419
Commercial [Member] | Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	250		114
Commercial [Member] | Loss [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	0		0
Consumer loans [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	16,906		12,606
Consumer loans [Member] | Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	13,853		12,510
Consumer loans [Member] | Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	24		15
Consumer loans [Member] | Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	3,026		44
Consumer loans [Member] | Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	3		37
Consumer loans [Member] | Loss [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	$ 0		$ 0

[1] Gross loan balances at September 30, 2014 and December 31, 2013 are net of deferred loan costs of $2.7 million and $2.4 million, respectively.