Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	$ 11,113	$ 11,508
Restructured Loans	25,833	24,429
Loans Past Due 90 Days or More and Still Accruing	2	0
Real Estate Construction and Land Development [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	3,165	3,744
Restructured Loans	3,679	3,742
Loans Past Due 90 Days or More and Still Accruing	0	0
Real Estate Mortgage Residential [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	3,443	3,474
Restructured Loans	4,408	4,674
Loans Past Due 90 Days or More and Still Accruing	0	0
Real Estate Mortgage Farmland and Other Commercial Enterprises [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	4,401	4,202
Restructured Loans	17,738	16,004
Loans Past Due 90 Days or More and Still Accruing	0	0
Commercial and Industrial [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	76	81
Restructured Loans	0	0
Loans Past Due 90 Days or More and Still Accruing	0	0
Commercial Other [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	9	7
Restructured Loans	0	0
Loans Past Due 90 Days or More and Still Accruing	0	0
Consumer Secured [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	13
Restructured Loans	0
Loans Past Due 90 Days or More and Still Accruing	0
Consumer Unsecured [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	6	0
Restructured Loans	8	9
Loans Past Due 90 Days or More and Still Accruing	$ 2	$ 0

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

+ Details

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