Annual report [Section 13 and 15(d), not S-K Item 405]

Note 4 - Allowance for Credit Losses - Credit Risk Profile of Loan Portfolio (Details)

v3.26.1
Note 4 - Allowance for Credit Losses - Credit Risk Profile of Loan Portfolio (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Loan, current $ 18,939 $ 24,501
Loan, one year before 15,826 21,881
Loan, two years before 16,724 12,479
Loan, three years before 10,910 18,418
Loan, four years before 16,750 49,028
Loan, prior 43,139 4,600
Loan, revolving 7,176 0
Loan, revolving converted to term loans 0 130,907
Loans 129,464 130,907
Current year-to-date gross write-offs 0 0
Current year-to-date gross write-offs, one year before 0 0
Current year-to-date gross write-offs, two years before 0 0
Current year-to-date gross write-offs, three years before 0 0
Current year-to-date gross write-offs, four years before 0 0
Current year-to-date gross write-offs, prior 0 0
Current year-to-date gross write-offs, revolving 0 0
Current year-to-date gross write-offs, revolving converted to term loans 0 0
Charge-offs 0 0
Pass [Member]    
Loan, current 18,939 24,501
Loan, one year before 15,564 21,881
Loan, two years before 16,724 12,479
Loan, three years before 10,910 18,418
Loan, four years before 16,750 49,028
Loan, prior 43,117 4,600
Loan, revolving 7,176 0
Loan, revolving converted to term loans 0 130,907
Loans 129,180  
Special Mention [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
Substandard [Member]    
Loan, current 0 0
Loan, one year before 262 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 22 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 284  
First Mortgage Loans [Member]    
Loans 129,196 130,625
First Mortgage Loans [Member] | One To Four Family Residential [Member]    
Loan, current 16,653 20,577
Loan, one year before 13,597 20,986
Loan, two years before 16,423 12,421
Loan, three years before 10,870 18,074
Loan, four years before 16,434 43,245
Loan, prior 37,791 4,106
Loan, revolving 6,454 0
Loan, revolving converted to term loans 0 119,409
Loans 118,222 119,409
Current year-to-date gross write-offs 0 0
Current year-to-date gross write-offs, one year before 0 0
Current year-to-date gross write-offs, two years before 0 0
Current year-to-date gross write-offs, three years before 0 0
Current year-to-date gross write-offs, four years before 0 0
Current year-to-date gross write-offs, prior 0 0
Current year-to-date gross write-offs, revolving 0 0
Current year-to-date gross write-offs, revolving converted to term loans 0 0
Charge-offs 0 0
First Mortgage Loans [Member] | One To Four Family Residential [Member] | Pass [Member]    
Loan, current 16,653 20,577
Loan, one year before 13,335 20,986
Loan, two years before 16,423 12,421
Loan, three years before 10,870 18,074
Loan, four years before 16,434 43,245
Loan, prior 37,769 4,106
Loan, revolving 6,454 0
Loan, revolving converted to term loans 0 119,409
Loans 117,938  
First Mortgage Loans [Member] | One To Four Family Residential [Member] | Special Mention [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
First Mortgage Loans [Member] | One To Four Family Residential [Member] | Substandard [Member]    
Loan, current 0 0
Loan, one year before 262 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 22 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 284  
First Mortgage Loans [Member] | Multifamily [Member]    
Loan, current 0 515
Loan, one year before 507 0
Loan, two years before 0 0
Loan, three years before 0 230
Loan, four years before 221 2,623
Loan, prior 2,512 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 3,368
Loans 3,240 3,368
Current year-to-date gross write-offs 0 0
Current year-to-date gross write-offs, one year before 0 0
Current year-to-date gross write-offs, two years before 0 0
Current year-to-date gross write-offs, three years before 0 0
Current year-to-date gross write-offs, four years before 0 0
Current year-to-date gross write-offs, prior 0 0
Current year-to-date gross write-offs, revolving 0 0
Current year-to-date gross write-offs, revolving converted to term loans 0 0
Charge-offs 0 0
First Mortgage Loans [Member] | Multifamily [Member] | Pass [Member]    
Loan, current 0 515
Loan, one year before 507 0
Loan, two years before 0 0
Loan, three years before 0 230
Loan, four years before 221 2,623
Loan, prior 2,512 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 3,368
Loans 3,240  
First Mortgage Loans [Member] | Multifamily [Member] | Special Mention [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
First Mortgage Loans [Member] | Multifamily [Member] | Substandard [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
First Mortgage Loans [Member] | Commercial Real Estate [Member]    
Loan, current 0 148
Loan, one year before 0 301
Loan, two years before 165 0
Loan, three years before 0 96
Loan, four years before 92 3,158
Loan, prior 2,834 494
Loan, revolving 722 0
Loan, revolving converted to term loans 0 4,197
Loans 3,813 4,197
Current year-to-date gross write-offs 0 0
Current year-to-date gross write-offs, one year before 0 0
Current year-to-date gross write-offs, two years before 0 0
Current year-to-date gross write-offs, three years before 0 0
Current year-to-date gross write-offs, four years before 0 0
Current year-to-date gross write-offs, prior 0 0
Current year-to-date gross write-offs, revolving 0 0
Current year-to-date gross write-offs, revolving converted to term loans 0 0
Charge-offs 0 0
First Mortgage Loans [Member] | Commercial Real Estate [Member] | Pass [Member]    
Loan, current 0 148
Loan, one year before 0 301
Loan, two years before 165 0
Loan, three years before 0 96
Loan, four years before 92 3,158
Loan, prior 2,834 494
Loan, revolving 722 0
Loan, revolving converted to term loans 0 4,197
Loans 3,813  
First Mortgage Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
First Mortgage Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
First Mortgage Loans [Member] | Construction Loans [Member]    
Loan, current 2,156 3,134
Loan, one year before 1,676 517
Loan, two years before 89 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 3,651
Loans 3,921 3,651
Current year-to-date gross write-offs 0 0
Current year-to-date gross write-offs, one year before 0 0
Current year-to-date gross write-offs, two years before 0 0
Current year-to-date gross write-offs, three years before 0 0
Current year-to-date gross write-offs, four years before 0 0
Current year-to-date gross write-offs, prior 0 0
Current year-to-date gross write-offs, revolving 0 0
Current year-to-date gross write-offs, revolving converted to term loans 0 0
Charge-offs 0 0
First Mortgage Loans [Member] | Construction Loans [Member] | Pass [Member]    
Loan, current 2,156 3,134
Loan, one year before 1,676 517
Loan, two years before 89 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 3,651
Loans 3,921  
First Mortgage Loans [Member] | Construction Loans [Member] | Special Mention [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
First Mortgage Loans [Member] | Construction Loans [Member] | Substandard [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
Consumer Portfolio Segment [Member]    
Loan, current 130 127
Loan, one year before 46 77
Loan, two years before 47 58
Loan, three years before 40 18
Loan, four years before 3 2
Loan, prior 2 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 282
Loans 268 282
Current year-to-date gross write-offs 0 0
Current year-to-date gross write-offs, one year before 0 0
Current year-to-date gross write-offs, two years before 0 0
Current year-to-date gross write-offs, three years before 0 0
Current year-to-date gross write-offs, four years before 0 0
Current year-to-date gross write-offs, prior 0 0
Current year-to-date gross write-offs, revolving 0 0
Current year-to-date gross write-offs, revolving converted to term loans 0 0
Charge-offs 0 0
Consumer Portfolio Segment [Member] | Pass [Member]    
Loan, current 130 127
Loan, one year before 46 77
Loan, two years before 47 58
Loan, three years before 40 18
Loan, four years before 3 2
Loan, prior 2 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 282
Loans 268  
Consumer Portfolio Segment [Member] | Special Mention [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 0
Loans 0  
Consumer Portfolio Segment [Member] | Substandard [Member]    
Loan, current 0 0
Loan, one year before 0 0
Loan, two years before 0 0
Loan, three years before 0 0
Loan, four years before 0 0
Loan, prior 0 0
Loan, revolving 0 0
Loan, revolving converted to term loans 0 $ 0
Loans $ 0