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Note A - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Number of Reportable Segments |  | 2 |  |
Percentage of Loan Portfolio |  | 100.00% | 100.00% |
Due from Banks |  | $ 60,872 |  |
Repossessed Assets |  | 1,574 | $ 2,129 |
Servicing Asset |  | $ 360 | $ 387 |
Weighted Average Number of Shares Outstanding, Basic |  | 4,685,067 | 4,351,748 | 4,117,675
Weighted Average Number of Shares Outstanding, Diluted |  | 0 | 0 | 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  | 34.00% |  |
Restricted Cash and Cash Equivalents |  | $ 61,915 | $ 28,102 |
Goodwill, Impairment Loss |  | $ 0 | $ 0 |
Scenario, Forecast [Member] |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% |  |  |
Equipment Furniture and Fixtures [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 3 years |  |
Equipment Furniture and Fixtures [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 8 years |  |
Building and Building Improvements [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 7 years |  |
Building and Building Improvements [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 39 years |  |
Unsecured [Member] |  |  |  |
Percentage of Loan Portfolio |  | 4.86% | 5.61% |
Consumer Portfolio Segment [Member] |  |  |  |
Period of Actual Loss History Experienced |  | 3 years |  |
Percentage of Loan Portfolio |  | 18.15% | 18.27% |
Commercial Portfolio Segment [Member] |  |  |  |
Period of Actual Loss History Experienced |  | 5 years |  |
Percentage of Loan Portfolio |  | 13.92% | 13.69% |

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