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MORTGAGE SERVICING RIGHTS (Tables) | 3 Months Ended
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Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Mortgage Servicing Rights Activity | Mortgage servicing rights activity for the three month period ended March 31, 2021 and twelve months ended December 31, 2020 were as follows:
|  | As of and for the Three Months Ended |  | As of and for the Twelve Months Ended
Mortgage servicing rights: |  | March 31, 2021 |  | December 31, 2020
Mortgage servicing rights, beginning of period |  | $ | 5,266 |  |  | $ | 4,541 |
Increase in mortgage servicing rights resulting from transfers of financial assets |  | 297 |  |  | 2,020 |
Amortization during the period |  | (439) |  |  | (1,295) |
|  | 5,124 |  |  | 5,266 |
Valuation allowance: |  |  |  |
Valuation allowance, beginning of period |  | (2,014) |  |  | (259) |
Additions |  | — |  |  | (1,755) |
Recoveries |  | 889 |  |  | — |
Valuation allowance, end of period |  | (1,125) |  |  | (2,014) |
Mortgage servicing rights, net |  | $ | 3,999 |  |  | $ | 3,252 |
Fair value of mortgage servicing rights; end of period |  | $ | 4,005 |  |  | $ | 3,285 |
Residential mortgage loans serviced for others |  | $ | 551,622 |  |  | $ | 553,655 |
Net book value of mortgage servicing rights to loans serviced for others |  | 0.73 | % |  | 0.59 | %

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