Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	$ 11,508	$ 23,838
Restructured Loans	24,429	26,255
Loans Past Due 90 Days or More and Still Accruing	0	444
Real Estate Construction and Land Development [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	3,744	5,821
Restructured Loans	3,742	4,391
Loans Past Due 90 Days or More and Still Accruing	0	0
Real Estate Mortgage Residential [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	3,474	5,154
Restructured Loans	4,674	4,826
Loans Past Due 90 Days or More and Still Accruing	0	10
Real Estate Mortgage Farmland and Other Commercial Enterprises [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	4,202	12,677
Restructured Loans	16,004	16,987
Loans Past Due 90 Days or More and Still Accruing	0	434
Commercial and Industrial [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	81	160
Restructured Loans	0	0
Loans Past Due 90 Days or More and Still Accruing	0	0
Commercial Other [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	7	0
Restructured Loans	0
Loans Past Due 90 Days or More and Still Accruing	0	0
Consumer Unsecured [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	0	1
Restructured Loans	9	51
Loans Past Due 90 Days or More and Still Accruing	0	0
Lease Financing [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	0	22
Restructured Loans		0
Loans Past Due 90 Days or More and Still Accruing	0	0
Consumer Secured [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Investment in Nonperforming Loans by Class of Loans [Line Items]
Nonaccrual	0	3
Restructured Loans		0
Loans Past Due 90 Days or More and Still Accruing	$ 0	$ 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

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+ References

+ Details

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