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Note 4 - Loans and Allowance for Loan Losses (Details Textual) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 USD ($) | Mar. 31, 2018 | Dec. 31, 2018 USD ($)
Increase (Decrease) in Other Loans | $ 950 |  |
Change In Troubled Debt Restructurings | 11.00% |  |
Impaired Financing Receivable, Related Allowance | $ 261 |  | $ 98
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend | $ 614 |  | 758
Financing Receivable, Modifications, Number of Contracts | 2 | 0 |
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down | $ 0 |  |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | 0 | 0 |
Minimum Loan Balance For Loans Evaluated by Risk Categories | $ 500 |  |
Troubled Debt Restructurings [Member] |  |  |
Impaired Financing Receivable, Related Allowance | $ 95 |  | $ 98
Unsecured [Member] |  |  |
Percentage of Loan Portfolio | 4.44% |  | 5.02%
Residential Portfolio Segment [Member] |  |  |
Real Estate Acquired Through Foreclosure | $ 134 |  | $ 134
Mortgage Loans in Process of Foreclosure, Amount | 1,177 |  | $ 2,375
Impaired Financing Receivable, Related Allowance | $ 89 |  |

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- Definition Minimum loan balance for impaired loans on nonaccrual status or nonperforming in nature. + References No definition available. + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
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- Definition Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524 + 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=118939409&loc=d3e18845-111554 + Details
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