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MORTGAGE SERVICING RIGHTS (Tables) | 6 Months Ended
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Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Mortgage Servicing Rights Activity | Mortgage servicing rights activity for the six month periods ended June 30, 2023 and June 30, 2022 were as follows:
|  | As of and for the Three Months Ended |  | As of and for the Three Months Ended |  | As of and for the Six Months Ended |  | As of and for the Six Months Ended
|  | June 30, 2023 |  | June 30, 2022 |  | June 30, 2023 |  | June 30, 2022
Mortgage servicing rights: |  |  |  |  |  |  |  |
Mortgage servicing rights, beginning of period |  | $ | 4,120 |  |  | $ | 4,614 |  |  | $ | 4,262 |  |  | $ | 4,727 |
Increase in mortgage servicing rights resulting from transfers of financial assets |  | 36 |  |  | 101 |  |  | 52 |  |  | 227 |
Amortization during the period |  | (148) |  |  | (195) |  |  | (306) |  |  | (434) |
Mortgage servicing rights, end of period |  | 4,008 |  |  | 4,520 |  |  | 4,008 |  |  | 4,520 |
Valuation allowance: |  |  |  |  |  |  |  |
Valuation allowance, beginning of period |  | — |  |  | — |  |  | — |  |  | (566) |
Additions |  | — |  |  | — |  |  | — |  |  | — |
Recoveries |  | — |  |  | — |  |  | — |  |  | 566 |
Valuation allowance, end of period |  | — |  |  | — |  |  | — |  |  | — |
Mortgage servicing rights, net |  | $ | 4,008 |  |  | $ | 4,520 |  |  | $ | 4,008 |  |  | $ | 4,520 |
Fair value of mortgage servicing rights; end of period |  | $ | 5,705 |  |  | $ | 5,475 |  |  | $ | 5,705 |  |  | $ | 5,475 |

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- Definition Mortgage Servicing Rights Activity [Table Text Block] + References No definition available. + Details
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Namespace Prefix: | czwi_
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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