Note 6 - Other Borrowed Funds (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2013	Dec. 31, 2012
Note 6 - Other Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, Maturities Summary, Fixed Rate	$ 15,457
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate, Range from	1.53%
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate, Range to	3.31%
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Weighted Average Interest Rate	2.23%
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	210,447
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	164,491
Federal Home Loan Bank, Advances, Short-term	75,000
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	1.15%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	5.00%
Securities Received as Collateral	30,500	14,200
Residential Mortgage [Member]
Note 6 - Other Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	198,507
Commercial Loan [Member]
Note 6 - Other Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	89,913
FHLB Stock [Member]
Note 6 - Other Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	6,281
FHLB Line of Credit [Member]
Note 6 - Other Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	75,000
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	$ 75,000

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Maximum contractual interest rate for funds borrowed, under the debt agreement.

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Minimum contractual interest rate for funds borrowed, under the debt agreement.

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Discloses the lowest interest rate applicable to any of the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

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Discloses the highest interest rate applicable to any of the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

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Describes the weighted average interest rate applicable to the specific advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

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Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Amount of Federal Home Loan Bank (FHLB) advances which have fixed interest.

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Federal Home Loan Bank borrowings due within one year of the latest balance sheet date.

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The carrying value as of the balance sheet date of the assets received as collateral against securities loaned to other broker-dealers. Borrowers of securities generally are required to provide collateral to the lenders of securities, commonly cash but sometimes other securities or standby letters of credit, with a value slightly higher than that of the securities borrowed. In instances where the entity is permitted to sell or re-pledge these securities, the entity reports the fair value of the collateral received and the related obligation to return the collateral as a liability.

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