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Note 10 - Fair Values Of Financial Instruments (Details) - Fair Value Hierarchy of Financial Instruments (USD $) | Mar. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Financial assets: |  |  |  |
Securities available for sale | $ 141,097,000 |  | $ 131,178,000 |
Securities available for sale | 141,097,000 |  | 131,178,000 |
FHLB stock | 11,961,000 |  | 11,961,000 |
Bank owned life insurance | 51,667,000 |  | 51,377,000 |
Accrued interest receivable | 3,861,000 |  | 3,649,000 |
Financial liabilities: |  |  |  |
Deposits | 1,108,251,000 |  | 1,118,911,000 |
Repurchase agreements | 63,165,000 |  | 69,305,000 |
Accrued interest payable | 6,420,000 |  | 7,435,000 |
Carrying Amount [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Financial assets: |  |  |  |
Cash | 1,699,000 |  | 1,464,000 |
Carrying Amount [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Financial assets: |  |  |  |
Cash equivalents | 108,248,000 |  | 145,501,000 |
Bank owned life insurance | 51,667,000 |  | 51,377,000 |
Accrued interest receivable | 3,861,000 |  | 3,649,000 |
Financial liabilities: |  |  |  |
Deposits | 1,108,251,000 |  | 1,118,911,000 |
Repurchase agreements | 63,165,000 |  | 69,305,000 |
FHLB advances | 45,000,000 |  | 45,000,000 |
Subordinated debentures | 32,990,000 |  | 32,990,000 |
Accrued interest payable | 1,431,000 |  | 2,041,000 |
Carrying Amount [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Financial assets: |  |  |  |
Loans, net | 1,045,842,000 |  | 1,030,422,000 |
Carrying Amount [Member] | Interest Rate Swap [Member] |  |  |  |
Financial liabilities: |  |  |  |
Interest rate swap | 250,000 | [1] | 264,000 | [1]
Carrying Amount [Member] |  |  |  |
Financial assets: |  |  |  |
Securities available for sale | 141,097,000 | [1] | 131,178,000 | [1]
Securities available for sale | 141,097,000 | [1] | 131,178,000 | [1]
FHLB stock | 11,961,000 | [2] | 11,961,000 | [2]
Fair Value [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Financial assets: |  |  |  |
Cash | 1,699,000 |  | 1,464,000 |
Fair Value [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Financial assets: |  |  |  |
Cash equivalents | 108,248,000 |  | 145,501,000 |
Bank owned life insurance | 51,667,000 |  | 51,377,000 |
Accrued interest receivable | 3,861,000 |  | 3,649,000 |
Financial liabilities: |  |  |  |
Deposits | 1,110,957,000 |  | 1,120,576,000 |
Repurchase agreements | 63,165,000 |  | 69,305,000 |
FHLB advances | 45,035,000 |  | 45,139,000 |
Subordinated debentures | 32,959,000 |  | 32,974,000 |
Accrued interest payable | 1,431,000 |  | 2,041,000 |
Fair Value [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Financial assets: |  |  |  |
Loans, net | 1,045,151,000 |  | 1,027,300,000 |
Fair Value [Member] | Interest Rate Swap [Member] |  |  |  |
Financial liabilities: |  |  |  |
Interest rate swap | 250,000 | [1] | 264,000 | [1]
Fair Value [Member] |  |  |  |
Financial assets: |  |  |  |
Securities available for sale | 141,097,000 | [1] | 131,178,000 | [1]
Securities available for sale | 141,097,000 | [1] | 131,178,000 | [1]
FHLB stock | $ 11,961,000 | [2] | $ 11,961,000 | [2]
[1] | See Note 11 for a description of the fair value hierarchy as well as a disclosure of levels for classes of financial assets and liabilities.
[2] | It is not practical to determine the fair value of FHLB stock due to transferability restrictions.

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 + Details
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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 10 -Section F Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Article 5 -Subsection 19, 20, 22 + Details
Name: | us-gaap_SubordinatedDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant