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Note 4 - Loans And Related Allowance For Loan Losses (Detail) - Primary Segments of the Loan Portfolio (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Loans:
Individually evaluated for impairment	$ 21,288	$ 16,732
Collectively evaluated for impairment	387,145	385,148
Total loans	408,433	401,880
Commercial and Industrial [Member]
Loans:
Individually evaluated for impairment	4,592	4,492
Collectively evaluated for impairment	57,596	54,693
Total loans	62,188	59,185
Real Estate Construction [Member]
Loans:
Individually evaluated for impairment	3,993	867
Collectively evaluated for impairment	18,529	20,678
Total loans	22,522	21,545
Residential Real Estate Mortgage [Member]
Loans:
Individually evaluated for impairment	5,761	4,882
Collectively evaluated for impairment	198,111	203,257
Total loans	203,872	208,139
Commercial Real Estate Mortgage [Member]
Loans:
Individually evaluated for impairment	6,914	6,491
Collectively evaluated for impairment	108,820	102,011
Total loans	115,734	108,502
Consumer Installment [Member]
Loans:
Individually evaluated for impairment	28
Collectively evaluated for impairment	4,089	4,509
Total loans	$ 4,117	$ 4,509

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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

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The balance of financing receivables that were individually evaluated for impairment.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

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Amount before allowance and after 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

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

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 8

-Subparagraph e

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

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 116

-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.



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5074-111524



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-Publisher FASB

-Name Accounting Standards Codification

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-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.

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