Note 4 - Loans and Related Allowance for Loan Losses (Details) - Primary Segments of the Loan Portfolio (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Loans:
Individually evaluated for impairment	$ 14,368	$ 18,965
Collectively evaluated for impairment	456,216	416,760
Total loans	470,584	435,725
Commercial and Industrial [Member]
Loans:
Individually evaluated for impairment	1,393	1,891
Collectively evaluated for impairment	59,351	52,607
Total loans	60,744	54,498
Real Estate Construction [Member]
Loans:
Individually evaluated for impairment	3,296	4,011
Collectively evaluated for impairment	27,000	21,590
Total loans	30,296	25,601
Residential Real Estate Mortgage [Member]
Loans:
Individually evaluated for impairment	5,183	5,882
Collectively evaluated for impairment	222,369	204,428
Total loans	227,552	210,310
Commercial Real Estate Mortgage [Member]
Loans:
Individually evaluated for impairment	4,490	7,175
Collectively evaluated for impairment	142,923	133,996
Total loans	147,413	141,171
Consumer Installment [Member]
Loans:
Individually evaluated for impairment	6	6
Collectively evaluated for impairment	4,573	4,139
Total loans	$ 4,579	$ 4,145

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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=35738203&loc=SL6953423-111524

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

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- Definition

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 FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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