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Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Percentage of Loan Portfolio Concentrated in Loans Secured by Real Estate. | 87.00% |
Discounted Percentage to Account for Selling and Marketing Costs | 10.00% |
Probability of Uncertain Tax Positions of Being Realized upon Settlement, Minimum | 50.00% |
Other Assets [Member] |  |
Cash Surrender Value of Life Insurance | $ 17,184 | $ 17,598

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