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Servicing Rights (Tables) | 12 Months Ended
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Sep. 30, 2019
Transfers and Servicing [Abstract] |
Analysis of the changes in MSRs | The following is an analysis of the changes in SBA servicing rights for the years ended September 30, 2019, 2018 and 2017 (dollars in thousands):
| 2019 |  |  | 2018 |  |  | 2017 |
Balance, beginning of year | $ | 6 |  |  | $ | 2 |  |  | $ | 3 |
Additions due to South Sound Acquisition | 281 |  |  | — |  |  | — |
Other additions | 2 |  |  | 7 |  |  | — |
Amortization | (83 | ) |  | (3 | ) |  | (1 | )
Valuation allowance | (4 | ) |  | — |  |  | — |
Balance, end of year | $ | 202 |  |  | $ | 6 |  |  | $ | 2 |
The following is an analysis of the changes in Freddie Mac servicing rights for the years ended September 30, 2019, 2018 and 2017 (dollars in thousands):
| 2019 |  |  | 2018 |  |  | 2017 |
Balance, beginning of year | $ | 2,022 |  |  | $ | 1,823 |  |  | $ | 1,570 |
Additions | 747 |  |  | 687 |  |  | 739 |
Amortization | (563 | ) |  | (488 | ) |  | (486 | )
Balance, end of year | $ | 2,206 |  |  | $ | 2,022 |  |  | $ | 1,823 |

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