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Servicing Rights (Tables) | 12 Months Ended
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Sep. 30, 2020
Transfers and Servicing [Abstract] |
Analysis of the changes in MSRs | The following is an analysis of the changes in Freddie Mac servicing rights for the years ended September 30, 2020, 2019 and 2018 (dollars in thousands):
| 2020 |  | 2019 |  | 2018
Balance, beginning of year | $ | 2,206 |  |  | $ | 2,022 |  |  | $ | 1,823 |
Additions | 1,733 |  |  | 747 |  |  | 687 |
Amortization | (748) |  |  | (563) |  |  | (488) |
Valuation allowance | (211) |  |  | — |  |  | — |
Balance, end of year | $ | 2,980 |  |  | $ | 2,206 |  |  | $ | 2,022 |
The following is an analysis of the changes in SBA servicing rights for the years ended September 30, 2020, 2019 and 2018 (dollars in thousands):
| 2020 |  | 2019 |  | 2018
Balance, beginning of year | $ | 202 |  |  | $ | 6 |  |  | $ | 2 |
Additions due to South Sound Acquisition | — |  |  | 285 |  |  | — |
Other additions | 13 |  |  | 2 |  |  | 7 |
Amortization | (90) |  |  | (83) |  |  | (3) |
Valuation allowance - South Sound Acquisition | — |  |  | (4) |  |  | — |
Valuation allowance | (10) |  |  | (4) |  |  | — |
Balance, end of year | $ | 115 |  |  | $ | 202 |  |  | $ | 6 |

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