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Note 21 - Fair Value of Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
|  | Fair Value Measurements as of December 31, 2016 Using |
|  | Totals At December 31, 2016 |  |  | Quoted Prices in Active Markets For Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
|  | (Dollars in Thousands) |
Investment securities, available-for-sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 98,409 |  |  | $ | — |  |  | $ | 98,409 |  |  | $ | — |
Commercial |  |  | 70,530 |  |  |  | — |  |  |  | 70,530 |  |  |  | — |
Obligations of states and political subdivisions |  |  | 10,142 |  |  |  | — |  |  |  | 10,142 |  |  |  | — |
Obligations of U.S. government-sponsored agencies |  |  | 1,993 |  |  |  | — |  |  |  | 1,993 |  |  |  | — |
Corporate notes |  |  | 756 |  |  |  | — |  |  |  | 756 |  |  |  | — |
U.S. Treasury securities |  |  | 80 |  |  |  | — |  |  |  | 80 |  |  |  | — |
Other assets - derivatives |  |  | 346 |  |  |  | — |  |  |  | 346 |  |  |  | — |
|  | Fair Value Measurements as of December 31, 2015 Using |
|  | Totals At December 31, 2015 |  |  | Quoted Prices in Active Markets For Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
|  | (Dollars in Thousands) |
Investment securities, available-for-sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 135,494 |  |  | $ | — |  |  | $ | 135,494 |  |  | $ | — |
Commercial |  |  | 45,509 |  |  |  | — |  |  |  | 45,509 |  |  |  | — |
Obligations of states and political subdivisions |  |  | 14,998 |  |  |  | — |  |  |  | 14,998 |  |  |  | — |
Obligations of U.S. government-sponsored agencies |  |  | 1,982 |  |  |  | — |  |  |  | 1,982 |  |  |  | — |
Corporate notes |  |  | 780 |  |  |  | — |  |  |  | 780 |  |  |  | — |
U.S. Treasury securities |  |  | 80 |  |  |  | — |  |  |  | 80 |  |  |  | — |
Other assets - derivatives |  |  | 3 |  |  |  | — |  |  |  | 3 |  |  |  | — |
Fair Value Assets Measured On Nonrecurring Basis [Table Text Block] |
|  | Fair Value Measurements as of December 31, 2016 Using |
|  | Totals At December 31, 2016 |  |  | Quoted Prices in Active Markets For Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
|  | (Dollars in Thousands) |
Impaired loans |  | $ | 1,568 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,568 |
OREO |  |  | 4,858 |  |  |  | — |  |  |  | — |  |  |  | 4,858 |
Other assets |  |  | 280 |  |  |  | — |  |  |  | — |  |  |  | 280 |
|  | Fair Value Measurements as of December 31, 2015 Using |
|  | Totals At December 31, 2015 |  |  | Quoted Prices in Active Markets For Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
|  | (Dollars in Thousands) |
Impaired loans |  | $ | 2,350 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,350 |
OREO |  |  | 6,038 |  |  |  | — |  |  |  | — |  |  |  | 6,038 |
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block] |
|  | Level 3 Significant Unobservable Input Assumptions
|  | Fair Value as of December 31, 2016 |  |  | Valuation Technique |  |  | Unobservable Input |  |  | Quantitative Range of Unobservable Inputs (Weighted Average)
|  | (Dollars in Thousands)
Impaired loans |  | $ | 1,568 |  |  | Multiple data points, including discount to appraised value of collateral based on recent market activity |  |  | Appraisal comparability adjustment (discount) |  |  | 9% | - (9.5)% | 10%
OREO |  | $ | 4,858 |  |  | Discount to appraised value of property based on recent market activity for sales of similar properties |  |  | Appraisal comparability adjustment (discount) |  |  | 9% | - (9.5)% | 10%
Other assets |  | $ | 280 |  |  | Discount to appraised value of property based on recent market activity for sales of similar properties |  |  | Appraisal comparability adjustment (discount) |  |  | 9% | - (9.5)% | 10%
Fair Value, by Balance Sheet Grouping [Table Text Block] |
|  | December 31, 2016 |
|  | Carrying Amount |  |  | Estimated Fair Value |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
|  | (Dollars in Thousands) |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 23,530 |  |  | $ | 23,530 |  |  | $ | 23,530 |  |  | $ | — |  |  | $ | — |
Investment securities available-for-sale |  |  | 181,910 |  |  |  | 181,910 |  |  |  | — |  |  |  | 181,910 |  |  |  | — |
Investment securities held-to-maturity |  |  | 25,904 |  |  |  | 25,508 |  |  |  | — |  |  |  | 25,508 |  |  |  | — |
Federal Home Loan Bank stock |  |  | 1,581 |  |  |  | 1,581 |  |  |  | — |  |  |  | — |  |  |  | 1,581 |
Loans, net of allowance for loan losses |  |  | 322,772 |  |  |  | 319,881 |  |  |  | — |  |  |  | — |  |  |  | 319,881 |
Other assets - derivatives |  |  | 346 |  |  |  | 346 |  |  |  | — |  |  |  | 346 |  |  |  | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits |  |  | 497,556 |  |  |  | 497,037 |  |  |  | — |  |  |  | 497,037 |  |  |  | — |
Short-term borrowings |  |  | 10,119 |  |  |  | 10,119 |  |  |  | — |  |  |  | 10,119 |  |  |  | — |
Long-term borrowings |  |  | 15,000 |  |  |  | 14,998 |  |  |  | — |  |  |  | 14,998 |  |  |  | — |
|  | December 31, 2015 |
|  | Carrying Amount |  |  | Estimated Fair Value |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
|  | (Dollars in Thousands) |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 44,072 |  |  | $ | 44,072 |  |  | $ | 44,072 |  |  | $ | — |  |  | $ | — |
Investment securities available-for-sale |  |  | 198,843 |  |  |  | 198,843 |  |  |  | — |  |  |  | 198,843 |  |  |  | — |
Investment securities held-to-maturity |  |  | 32,359 |  |  |  | 32,184 |  |  |  | — |  |  |  | 32,184 |  |  |  | — |
Federal Home Loan Bank stock |  |  | 1,025 |  |  |  | 1,025 |  |  |  | — |  |  |  | — |  |  |  | 1,025 |
Loans, net of allowance for loan losses |  |  | 255,432 |  |  |  | 256,392 |  |  |  | — |  |  |  | — |  |  |  | 256,392 |
Other assets – derivatives |  |  | 3 |  |  |  | 3 |  |  |  | — |  |  |  | 3 |  |  |  | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits |  |  | 479,258 |  |  |  | 478,833 |  |  |  | — |  |  |  | 478,833 |  |  |  | — |
Short-term borrowings |  |  | 7,354 |  |  |  | 7,352 |  |  |  | — |  |  |  | 7,352 |  |  |  | — |
Long-term debt |  |  | 5,000 |  |  |  | 4,977 |  |  |  | — |  |  |  | 4,977 |  |  |  | — |

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- Definition Tabular disclosure of the inputs and valuation techniques used to measure fair value, and a discussion of changes in valuation techniques and related inputs, if any, used to measure similar assets in prior periods (non-recurring basis) by class of asset or liability. + 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=66048111&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + 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 (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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