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Investment Securities (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Jun. 30, 2020
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Investments, Debt and Equity Securities [Abstract] |  |
Pledged securities | $ 1.8 | $ 1.9

X
- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration