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Securities - Investments Pledged as Collateral to Secure Public Deposits and Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Jun. 30, 2021
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Debt Securities, Available-for-sale [Line Items] |  |
Carrying value of investment and MBS pledged as collateral to secure public deposits and securities sold under agreements to repurchase | $ 164.8 | $ 155.6
Mortgage-Backed Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Carrying value of investment and MBS pledged as collateral to secure public deposits and securities sold under agreements to repurchase | 93.2 |
Mortgage-Backed Securities | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
Debt Securities, Available-for-sale [Line Items] |  |
Carrying value of investment and MBS pledged as collateral to secure public deposits and securities sold under agreements to repurchase |  | 95.4
Collateralized Mortgage Obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Carrying value of investment and MBS pledged as collateral to secure public deposits and securities sold under agreements to repurchase | 30.1 | 18.8
US States and Political Subdivisions Debt Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Carrying value of investment and MBS pledged as collateral to secure public deposits and securities sold under agreements to repurchase | $ 41.5 | $ 41.4

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- Definition Carrying amount of assets sold under agreements to repurchase when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(i)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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