Quarterly report [Sections 13 or 15(d)]

Note 12 - Fair Value Measurement (Details Textual)

v3.26.1
Note 12 - Fair Value Measurement (Details Textual)
3 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Asset, Impairment Loss $ 9,700,000 $ 2,400,000  
Gains (Losses) on Sales of Other Real Estate $ (11,000) $ 318,000  
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Number of Loans 4 5  
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Foreclosure $ 2,400,000 $ 2,500,000  
Number of Mortgage Loans in Process of Foreclosure 4   2
Mortgage Loans in Process of Foreclosure, Amount $ 749,144   $ 158,762
Liabilities $ 16,258,750,000   15,876,843,000 [1]
Fair Value, Number of Transfers Between Levels 0 0  
Fair Value, Recurring [Member]      
Liabilities $ 0   $ 0
Minimum [Member]      
Impaired Loans, Fair Value Adjustment, Percent 0.00%   0.00%
Real Estate Owned, Fair Value Adjustment, Percent 10.00%   10.00%
Maximum [Member]      
Impaired Loans, Fair Value Adjustment, Percent 70.00%   70.00%
Real Estate Owned, Fair Value Adjustment, Percent 87.00%   27.00%
Weighted Average [Member]      
Impaired Loans, Fair Value Adjustment, Percent 18.00%   17.10%
Real Estate Owned, Fair Value Adjustment, Percent 19.00%   23.50%
[1] Derived from audited financial statements.