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Note 20 - Regulatory Capital (Details Textual) $ in Millions | Dec. 31, 2021 USD ($)
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Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval | $ 26.6

X
- Definition Amount of dividends that can be declared or paid without approval of regulatory agency. + References No definition available. + Details
Name: | us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant