Loans (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Summary of loans secured by commercial real estate
Commercial real estate included in gross loans	$ 441,588	$ 478,576
Commercial real estate included in commercial loans held for sale	14,446	14,178
Loans, gross	723,986	773,558
Commercial [Member]
Summary of loans secured by commercial real estate
Commercial real estate included in gross loans	441,588
Commercial real estate included in commercial loans held for sale	10,176
Loans, gross	451,764
Percentage of gross loans and commercial loans held for sale	61.20%
Percentage of regulatory capital	415.50%
Construction, land development, and other land loans [Member]
Summary of loans secured by commercial real estate
Loans, gross	66,998	87,613
Construction, land development, and other land loans [Member] \| Commercial [Member]
Summary of loans secured by commercial real estate
Commercial real estate included in gross loans	66,998
Commercial real estate included in commercial loans held for sale	2,691
Loans, gross	69,689
Percentage of gross loans and commercial loans held for sale	9.50%
Percentage of regulatory capital	64.10%
Multifamily residential [Member]
Summary of loans secured by commercial real estate
Loans, gross	12,694	17,945
Multifamily residential [Member] \| Commercial [Member]
Summary of loans secured by commercial real estate
Commercial real estate included in gross loans	12,694
Loans, gross	12,694
Percentage of gross loans and commercial loans held for sale	1.70%
Percentage of regulatory capital	11.70%
Nonfarm nonresidential [Member]
Summary of loans secured by commercial real estate
Loans, gross	361,896	373,018
Nonfarm nonresidential [Member] \| Commercial [Member]
Summary of loans secured by commercial real estate
Commercial real estate included in gross loans	361,896
Commercial real estate included in commercial loans held for sale	7,485
Loans, gross	$ 369,381
Percentage of gross loans and commercial loans held for sale	50.00%
Percentage of regulatory capital	339.70%

Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a

-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5066-111524

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(c))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 60

-Paragraph 47

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 51, 52, 53

-IssueDate 2006-05-01

-Chapter 8

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details