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1. Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Unpaid principal balances of mortgage loans serviced for others | $ 578 | $ 729 | $ 866
Compensation expense for restricted stock units | $ 27 | $ 270 | $ 85
Building Improvements | Minimum |  |  |
Estimated useful lives | 10 years |  |
Building Improvements | Maximum |  |  |
Estimated useful lives | 50 years |  |
Furniture and equipment | Minimum |  |  |
Estimated useful lives | 3 years |  |
Furniture and equipment | Maximum |  |  |
Estimated useful lives | 10 years |  |

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