Loans, Net Summary of loan classifications by class of loan (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	$ 731,464	[1]	$ 728,480	[1]
Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	673,548		670,431
Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	22,100		22,145
Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	34,136		33,366
Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	1,680		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	34,977		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	24,936		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	2,222		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	7,302		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	517		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	17,738		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	9,228		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	607		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	274,566		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	256,869		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	1,852		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	14,832		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	1,013		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	265,993		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	247,534		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	9,410		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	9,025		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	24		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	125,395		129,554
Commercial [Member] | Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	122,258		126,246
Commercial [Member] | Special Mention [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	698		775
Commercial [Member] | Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	2,350		2,419
Commercial [Member] | Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	89		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	12,795		12,606
Consumer loans [Member] | Pass [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	12,723		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	15		15
Consumer loans [Member] | Substandard [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	20		44
Consumer loans [Member] | Doubtful [Member]
Summary of loan classifications by class of loan [Abstract]
Summary of loan quality by class of loan	37		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 March 31, 2014 and December 31, 2013 are net of deferred loan costs of $2.2 million and $2.4 million, respectively.