Loans And Allowance For Loan Losses (Major Components Of Loans) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 120,234	$ 130,472
Unearned discount and net deferred loan fees and costs	(310)	(314)
Total loans	119,924	130,158
Allowance for loan losses	(2,998)	(2,867)
Net loans	116,926	127,291
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,777	5,873
Allowance for loan losses	(32)	(35)
Construction And Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	8,692	8,868
Allowance for loan losses	(1,455)	(1,243)
Residential, 1-4 Families [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	28,075	26,568
Allowance for loan losses	(105)	(155)
Residential, 5 Or More Families [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,746	4,717
Allowance for loan losses
Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,275	1,306
Allowance for loan losses
Nonfarm, Nonresidential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	70,681	75,879
Agriculture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	39	9
Allowance for loan losses	(3)	(3)
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	937	2,487
Allowance for loan losses	(50)	(50)
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,012	4,765
Allowance for loan losses	$ (129)	$ (126)

Unearned discounts (other than cash or quantity discounts and the like), finance charges, and interest included in the face amount of receivables, that are shown as a deduction from the related receivables. For example, 1) finance charges booked as a receivable when a loan is made and recognized as income at a later date; and 2) interest charges deducted from the face loan amount, resulting in a discounted amount actually advanced to the borrower (wherein the receivable includes the amount actually advanced to the borrower and the as yet unearned interest income).

+ References+ Details

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 8, 9

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 3: 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(d))

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

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

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 8

-Subparagraph a(ii)

-Chapter V

-Subsection I

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph d

-Article 9

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 114

-Paragraph 20

-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 SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

+ Details

- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References+ Details