Note 7 - Loans and Allowance for Loan Losses (Details) - Aging Analysis of Loans (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	$ 1,726	$ 1,584
90 Days Or More Past Due	4,742	5,372
Total	6,468	6,956
Current	920,921	924,987
Total Loans	927,389	931,943
Real Estate Construction and Land Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	12	0
90 Days Or More Past Due	272	272
Total	284	272
Current	96,521	96,773
Total Loans	96,805	97,045
Real Estate Mortgage Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	1,323	1,395
90 Days Or More Past Due	1,588	1,595
Total	2,911	2,990
Current	351,619	358,032
Total Loans	354,530	361,022
Real Estate Mortgage Farmland and Other Commercial Enterprises [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	306	75
90 Days Or More Past Due	2,861	3,484
Total	3,167	3,559
Current	371,953	371,718
Total Loans	375,120	375,277
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	21	0
90 Days Or More Past Due	13	13
Total	34	13
Current	53,051	47,099
Total Loans	53,085	47,112
States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	0	0
90 Days Or More Past Due	0	0
Total	0	0
Current	21,874	22,369
Total Loans	21,874	22,369
Lease Financing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	0	0
90 Days Or More Past Due	0	0
Total	0	0
Current	114	158
Total Loans	114	158
Commercial Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	9	40
90 Days Or More Past Due	0	7
Total	9	47
Current	13,138	15,500
Total Loans	13,147	15,547
Consumer Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	34	58
90 Days Or More Past Due	0	0
Total	34	58
Current	7,482	7,905
Total Loans	7,516	7,963
Consumer Unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	21	16
90 Days Or More Past Due	8	1
Total	29	17
Current	5,169	5,433
Total Loans	$ 5,198	$ 5,450

The recorded investment of a financing receivable which is 30 to 89 days past due.

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- Definition

Financing receivables that are current.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7A

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524

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Financing receivables that are equal to or greater than 90 days past due.

+ References

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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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

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-Section 45

-Paragraph 2

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