Fair Value of Financial Instruments (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Assets recorded at fair value on a recurring basis
Interest rate lock commitments	$ 136	$ 76
Real estate and repossessions acquired in settlement of loans, net	7,118	6,573
Level 1 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	125,654	151,714
Level 2 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	157,379	186,094
Level 3 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	1,930	1,642
Recurring [Member]
Assets recorded at fair value on a recurring basis
Total Securities	284,963	339,450
Interest rate lock commitments	136	76
Total assets at fair value	285,099	339,526
Recurring [Member] | Obligations of states and political subdivisions [Member]
Assets recorded at fair value on a recurring basis
Total Securities	25,770	28,718
Recurring [Member] | Mortgage-backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	104,725	132,292
Recurring [Member] | SBA- backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	127,241	146,637
Recurring [Member] | Corporate bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities	27,227	30,771
Recurring [Member] | Government-sponsored enterprises and FFCB bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities		1,032
Recurring [Member] | Level 1 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	125,654	151,714
Interest rate lock commitments
Total assets at fair value	125,654	151,714
Recurring [Member] | Level 1 [Member] | Obligations of states and political subdivisions [Member]
Assets recorded at fair value on a recurring basis
Total Securities		6,752
Recurring [Member] | Level 1 [Member] | Mortgage-backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities
Recurring [Member] | Level 1 [Member] | SBA- backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	125,654	144,962
Recurring [Member] | Level 1 [Member] | Corporate bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities
Recurring [Member] | Level 1 [Member] | Government-sponsored enterprises and FFCB bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities
Recurring [Member] | Level 2 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	157,379	186,094
Interest rate lock commitments
Total assets at fair value	157,379	186,094
Recurring [Member] | Level 2 [Member] | Obligations of states and political subdivisions [Member]
Assets recorded at fair value on a recurring basis
Total Securities	25,770	21,966
Recurring [Member] | Level 2 [Member] | Mortgage-backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	104,725	132,292
Recurring [Member] | Level 2 [Member] | SBA- backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	1,587	1,675
Recurring [Member] | Level 2 [Member] | Corporate bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities	25,297	29,129
Recurring [Member] | Level 2 [Member] | Government-sponsored enterprises and FFCB bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities		1,032
Recurring [Member] | Level 3 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	1,930	1,642
Interest rate lock commitments	136	76
Total assets at fair value	2,066	1,718
Recurring [Member] | Level 3 [Member] | Obligations of states and political subdivisions [Member]
Assets recorded at fair value on a recurring basis
Total Securities
Recurring [Member] | Level 3 [Member] | Mortgage-backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities
Recurring [Member] | Level 3 [Member] | SBA- backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities
Recurring [Member] | Level 3 [Member] | Corporate bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities	1,930	1,642
Recurring [Member] | Level 3 [Member] | Government-sponsored enterprises and FFCB bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities
Nonrecurring [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	20,122	22,063
Real estate and repossessions acquired in settlement of loans, net	7,118	6,573
Total assets at fair value	27,240	28,636
Nonrecurring [Member] | Real Estate Secured by Residential Properties [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	5,962	3,893
Nonrecurring [Member] | Real Estate Secured by Nonfarm Nonresidential [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	8,926	8,805
Nonrecurring [Member] | Real Estate Construction and Land Development [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	5,230	9,169
Nonrecurring [Member] | Commercial and Industrial [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	4	196
Nonrecurring [Member] | Level 1 [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Real estate and repossessions acquired in settlement of loans, net
Total assets at fair value
Nonrecurring [Member] | Level 1 [Member] | Real Estate Secured by Residential Properties [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 1 [Member] | Real Estate Secured by Nonfarm Nonresidential [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 1 [Member] | Real Estate Construction and Land Development [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 1 [Member] | Commercial and Industrial [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 2 [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Real estate and repossessions acquired in settlement of loans, net
Total assets at fair value
Nonrecurring [Member] | Level 2 [Member] | Real Estate Secured by Residential Properties [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 2 [Member] | Real Estate Secured by Nonfarm Nonresidential [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 2 [Member] | Real Estate Construction and Land Development [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 2 [Member] | Commercial and Industrial [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 3 [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	20,122	22,063
Real estate and repossessions acquired in settlement of loans, net	7,118	6,573
Total assets at fair value	27,240	28,636
Nonrecurring [Member] | Level 3 [Member] | Real Estate Secured by Residential Properties [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	5,962	3,893
Nonrecurring [Member] | Level 3 [Member] | Real Estate Secured by Nonfarm Nonresidential [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	8,926	8,805
Nonrecurring [Member] | Level 3 [Member] | Real Estate Construction and Land Development [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	5,230	9,169
Nonrecurring [Member] | Level 3 [Member] | Commercial and Industrial [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	$ 4	$ 196