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Note 20 - Assets and Liabilities Measured and Reported at Fair Value - Significant Unobservable Inputs (Details) - Appraisal Discount Method [Member] - Fair Value, Inputs, Level 3 [Member] - Impaired Loans [Member]
$ in Thousands
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Collateral dependent loans, fair value $ 4,487 $ 7,546
Other real estate owned, fair value $ 7,212 $ 281
Weighted Average [Member]    
Impaired Loans, Measurement Input 0.411 0.107
Other Real Estate Owned, Measurement Input 0.316 0.360