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Note 8 - Fair Value Measurements (Details) - Level 3 Fair Value Measurements | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Discounted Appraised Value [Member] | Impaired loans [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Valuation Technique |  | Present value of cash flows | Discounted appraised value
Valuation Technique |  | Present value of cash flows | Discounted appraised value
Discounted Appraised Value [Member] | Other Real Estate Owned [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Valuation Technique |  | Discounted appraised value | Discounted appraised value
Valuation Technique |  | Discounted appraised value | Discounted appraised value
Present Value of Cash Flows [Member] | Impaired loans [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Valuation Technique |  |  | Present value of cash flows
Valuation Technique |  |  | Present value of cash flows
Minimum [Member] | Discounted Appraised Value [Member] | Impaired loans [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Selling cost |  | 5.88% |
Minimum [Member] | Discounted Appraised Value [Member] | Other Real Estate Owned [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Selling cost | [1],[2] | 0.00% | 0.00%
Discount rate |  | 0.00% | 0.00%
Minimum [Member] | Present Value of Cash Flows [Member] | Impaired loans [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Discount rate |  |  | 5.88%
Maximum [Member] | Discounted Appraised Value [Member] | Impaired loans [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Selling cost |  | 9.50% |
Maximum [Member] | Discounted Appraised Value [Member] | Other Real Estate Owned [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Selling cost |  | 10.00% | 11.00%
Discount rate |  | 55.91% | 48.77%
Maximum [Member] | Present Value of Cash Flows [Member] | Impaired loans [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Discount rate |  |  | 9.50%
Weighted Average [Member] | Discounted Appraised Value [Member] | Impaired loans [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Selling cost |  | (6.22%) |
Weighted Average [Member] | Discounted Appraised Value [Member] | Other Real Estate Owned [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Selling cost |  | (5.82%) | (8.60%)
Discount rate |  | (17.33%) | (20.81%)
Weighted Average [Member] | Present Value of Cash Flows [Member] | Impaired loans [Member] |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Discount rate |  |  | (6.15%)
[1] | Only one loan was valued using the collateral method as of December 31, 2014.
[2] | The Company markets other real estate owned both independently and with local realtors. Properties marketed by realtors are discounted by selling costs. Properties that the Company markets independently are not discounted by selling costs.

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Description of the inputs and valuation technique(s) used to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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