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Note 13 - Fair Value Measurements - Assets Measured At Fair Value on a Non-recurring Basis and Quantitative Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Recorded Investment   $ 7,600
Related Allowance   34
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Valuation, Market Approach [Member] | Impaired Loans, Collateral Dependent [Member]    
Recorded Investment $ 1,713 1,902
Related Allowance 40 8
Fair Value $ 1,673 $ 1,894
Selling Cost 10.00% 10.00%
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Valuation Technique, Discounted Cash Flow [Member] | Impaired Loans, Other [Member]    
Recorded Investment $ 134 $ 5,698
Related Allowance 0 26
Fair Value $ 134 $ 5,672
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Valuation Technique, Discounted Cash Flow [Member] | Impaired Loans, Other [Member] | Minimum [Member]    
Discount Rate 3.50% 3.00%
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Valuation Technique, Discounted Cash Flow [Member] | Impaired Loans, Other [Member] | Maximum [Member]    
Discount Rate 9.00% 10.25%