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Note 4 - Loans and Allowance for Loan Losses - TDRs Pre-modification and Post-modification (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) | Jun. 30, 2018 | Jun. 30, 2019 USD ($) | Jun. 30, 2018
Number of Loans | 2 | 0 | 2 | 0
Performing Financial Instruments [Member] |  |  |  |
Pre-modification recorded investment | $ 574 |  | $ 574 |
Post-modification recorded investment | 574 |  | 574 |
Nonperforming Financial Instruments [Member] |  |  |  |
Pre-modification recorded investment |  |  |  |
Post-modification recorded investment |  |  |  |
Residential Portfolio Segment [Member] |  |  |  |
Number of Loans | 1 |  | 1 |
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Interest Only Payments [Member] |  |  |  |
Pre-modification recorded investment | $ 292 |  | $ 292 |
Post-modification recorded investment | 292 |  | 292 |
Residential Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] | Interest Only Payments [Member] |  |  |  |
Pre-modification recorded investment |  |  |  |
Post-modification recorded investment |  |  |  |
Commercial and Industrial Portfolio Segment [Member] |  |  |  |
Number of Loans | 1 |  | 1 |
Commercial and Industrial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Interest Only Payments [Member] |  |  |  |
Pre-modification recorded investment | $ 282 |  | $ 282 |
Post-modification recorded investment | 282 |  | 282 |
Commercial and Industrial Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] | Interest Only Payments [Member] |  |  |  |
Pre-modification recorded investment |  |  |  |
Post-modification recorded investment |  |  |  |

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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 Amount, after troubled debt restructuring, of modified financing receivable. + 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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