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Note 2 - Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Selling Costs, Percentage |  |  | 10.00% |  |
Impaired Financing Receivable, Related Allowance | $ 499 |  | $ 499 |  | $ 94
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down |  | $ 0 |  | $ 0 |
Other Real Estate, Ending Balance | 822 |  | 822 |  | 822
Other Real Estate, Gross | 2,217 |  | 2,217 |  | 2,217
Real Estate Owned, Valuation Allowance, Ending Balance | 1,395 |  | 1,395 |  | 1,395
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Write-down or Reserve, Amount | 0 | 0 | 0 | 0 |
Collateral Dependent Loans [Member] |  |  |  |  |
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 741 |  | 741 |  | 972
Impaired Financing Receivable, Related Allowance | 409 |  | 409 |  | 0
Provision for Loan Losses Expensed | 409 | 142 | 409 | 142 | 0
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down | $ 0 | $ 0 | $ 0 | $ 0 | $ 0

X
- Definition The gross caryring amount of other real estate not separately disclosed. + References No definition available. + Details
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- Definition The percent selling cost makes up. + References No definition available. + Details
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- Definition Reflects the amount of the write-down related to a troubled debt restructuring. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554 + Details
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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
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- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
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- Definition Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(4)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of expense related to loss from loan transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 + Details
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- Definition Amount of write-down or reserve recognized in the income statement on real estate investments for entities with a substantial portion of business acquiring and holding investment real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Footnote 5)) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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