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2. Investment Securities (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract] |  |  |
Unrealized losses in the investment securites portfolio relating to debt securities | $ 888 | $ 738 | $ 1,400
Proceeds from sales of investment securities available for sale | 56,300 | 20,700 | 36,000
Gains on sales of available for sale securities | 2,600 | 226 | 15
Securities pledged to secure public deposits | $ 77,300 | $ 66,000 | $ 93,000

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