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Accumulated Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Jun. 30, 2021
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The changes in accumulated other comprehensive income (loss) ("AOCI") by component during the three and nine months ended June 30, 2021 and 2020 are as follows (dollars in thousands):
| Three Months Ended June 30, 2021
| Changes in fair value of available for sale securities (1) |  | Changes in OTTI on held to maturity securities (1) |  | Total (1)
Balance of AOCI at the beginning of period | $ | 144 |  |  | $ | (23) |  |  | $ | 121 |
Other comprehensive income | 1 |  |  | 7 |  |  | 8 |
Balance of AOCI at the end of period | $ | 145 |  |  | $ | (16) |  |  | $ | 129 |
| Nine Months Ended June 30, 2021
| Changes in fair value of available for sale securities (1) |  | Changes in OTTI on held to maturity securities (1) |  | Total (1)
Balance of AOCI at the beginning of period | $ | 87 |  |  | $ | (26) |  |  | $ | 61 |
Other comprehensive income | 58 |  |  | 10 |  |  | 68 |
Balance of AOCI at the end of period | $ | 145 |  |  | $ | (16) |  |  | $ | 129 |
| Three Months Ended June 30, 2020
| Changes in fair value of available for sale securities (1) |  | Changes in OTTI on held to maturity securities (1) |  | Total (1)
Balance of AOCI at the beginning of period | $ | (151) |  |  | $ | (28) |  |  | $ | (179) |
Other comprehensive income | 154 |  |  | 1 |  |  | 155 |
Balance of AOCI at the end of period | $ | 3 |  |  | $ | (27) |  |  | $ | (24) |
| Nine Months Ended June 30, 2020
| Changes in fair value of available for sale securities (1) |  | Changes in OTTI on held to maturity securities (1) |  | Total (1)
Balance of AOCI at the beginning of period | $ | 90 |  |  | $ | (40) |  |  | $ | 50 |
Other comprehensive (loss) income | (87) |  |  | 13 |  |  | (74) |
Balance of AOCI at the end of period | $ | 3 |  |  | $ | (27) |  |  | $ | (24) |
__________________________ (1) All amounts are net of income taxes.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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