Fair Value of Financial Instruments (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets recorded at fair value on a recurring basis
Interest rate lock commitments	$ 131	$ 76
Real estate and repossessions acquired in settlement of loans, net	7,661	6,573
Level 1 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	161,317	151,714
Level 2 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	187,624	186,094
Level 3 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	1,838	1,642
Recurring [Member]
Assets recorded at fair value on a recurring basis
Total Securities	350,779	339,450
Interest rate lock commitments	131	76
Total assets at fair value	350,910	339,526
Recurring [Member] | Government-sponsored enterprises and FFCB bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities		1,032
Recurring [Member] | Obligations of states and political subdivisions [Member]
Assets recorded at fair value on a recurring basis
Total Securities	37,779	28,718
Recurring [Member] | Mortgage-backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	132,799	132,292
Recurring [Member] | SBA- backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	139,602	146,637
Recurring [Member] | Corporate bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities	40,599	30,771
Recurring [Member] | Level 1 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	161,317	151,714
Interest rate lock commitments
Total assets at fair value	161,317	151,714
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 1 [Member] | Obligations of states and political subdivisions [Member]
Assets recorded at fair value on a recurring basis
Total Securities	3,903	6,752
Recurring [Member] | Level 1 [Member] | Mortgage-backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	19,463
Recurring [Member] | Level 1 [Member] | SBA- backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	137,951	144,962
Recurring [Member] | Level 1 [Member] | Corporate 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	187,624	186,094
Interest rate lock commitments
Total assets at fair value	187,624	186,094
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 2 [Member] | Obligations of states and political subdivisions [Member]
Assets recorded at fair value on a recurring basis
Total Securities	33,876	21,966
Recurring [Member] | Level 2 [Member] | Mortgage-backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	113,336	132,292
Recurring [Member] | Level 2 [Member] | SBA- backed securities [Member]
Assets recorded at fair value on a recurring basis
Total Securities	1,651	1,675
Recurring [Member] | Level 2 [Member] | Corporate bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities	38,761	29,129
Recurring [Member] | Level 3 [Member]
Assets recorded at fair value on a recurring basis
Total Securities	1,838	1,642
Interest rate lock commitments	131	76
Total assets at fair value	1,969	1,718
Recurring [Member] | Level 3 [Member] | Government-sponsored enterprises and FFCB bonds [Member]
Assets recorded at fair value on a recurring basis
Total Securities
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	1,838	1,642
Nonrecurring [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	18,871	22,063
Real estate and repossessions acquired in settlement of loans, net	7,661	6,573
Total assets at fair value	26,532	28,636
Nonrecurring [Member] | Real estate-secured by residential properties
Assets recorded at fair value on a recurring basis
Total impaired loans	5,240	3,893
Nonrecurring [Member] | Real estate-secured by nonfarm nonresidential properties
Assets recorded at fair value on a recurring basis
Total impaired loans	7,324	8,805
Nonrecurring [Member] | Real estate-construction and land development
Assets recorded at fair value on a recurring basis
Total impaired loans	6,128	9,169
Nonrecurring [Member] | Commercial and Industrial [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	179	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
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 1 [Member] | Real estate-secured by nonfarm nonresidential properties
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 1 [Member] | Real estate-construction and land development
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
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 2 [Member] | Real estate-secured by nonfarm nonresidential properties
Assets recorded at fair value on a recurring basis
Total impaired loans
Nonrecurring [Member] | Level 2 [Member] | Real estate-construction and land development
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	18,871	22,063
Real estate and repossessions acquired in settlement of loans, net	7,661	6,573
Total assets at fair value	26,532	28,636
Nonrecurring [Member] | Level 3 [Member] | Real estate-secured by residential properties
Assets recorded at fair value on a recurring basis
Total impaired loans	5,240	3,893
Nonrecurring [Member] | Level 3 [Member] | Real estate-secured by nonfarm nonresidential properties
Assets recorded at fair value on a recurring basis
Total impaired loans	7,324	8,805
Nonrecurring [Member] | Level 3 [Member] | Real estate-construction and land development
Assets recorded at fair value on a recurring basis
Total impaired loans	6,128	9,169
Nonrecurring [Member] | Level 3 [Member] | Commercial and Industrial [Member]
Assets recorded at fair value on a recurring basis
Total impaired loans	$ 179	$ 196