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Note 3 - Loans and Allowance for Loan Losses - Credit Risk Profile of Loan Portfolio (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Loan, current | $ 7,568 |  | $ 26,211
Loan, one year before | 24,496 |  | 19,045
Loan, two years before | 18,931 |  | 19,972
Loan, three years before | 19,781 |  |
Loan, prior | 52,799 |  |
Loan, revolving | 2,505 |  | 1,564
Loan, revolving converted to term loans | 0 |  | 0
Loans | 126,080 |  | 120,783
Current year-to-date gross write-offs, current | 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
Loan, three years before, writeoff | 0 |  |
Loan, prior, write-offs | 0 |  |
Loan, revolving, writeoff | 0 |  | 0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan | 0 |  | 0
Charge-offs | 0 | $ 0 | 0
Loan, prior |  |  | 53,991
Current year-to-date gross write-offs, prior |  |  | 0
First Mortgage Loans [Member] |  |  |
Loans | 125,854 |  | 120,535
First Mortgage Loans [Member] | One To Four Family Residential [Member] |  |  |
Loan, current | 7,303 |  | 23,395
Loan, one year before | 21,211 |  | 18,950
Loan, two years before | 18,844 |  | 19,605
Loan, three years before | 19,421 |  |
Loan, prior | 46,624 |  |
Loan, revolving | 2,297 |  | 1,414
Loan, revolving converted to term loans | 0 |  | 0
Loans | 115,700 |  | 111,081
Current year-to-date gross write-offs, current | 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
Loan, three years before, writeoff | 0 |  |
Loan, prior, write-offs | 0 |  |
Loan, revolving, writeoff | 0 |  | 0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan | 0 |  | 0
Charge-offs | 0 | 0 | 0
Loan, prior |  |  | 47,717
Current year-to-date gross write-offs, prior |  |  | 0
First Mortgage Loans [Member] | One To Four Family Residential [Member] | Pass [Member] |  |  |
Loan, current | 7,303 |  | 23,395
Loan, one year before | 21,211 |  | 18,950
Loan, two years before | 18,844 |  | 19,605
Loan, three years before | 19,421 |  |
Loan, prior | 46,387 |  |
Loan, revolving | 2,297 |  | 1,414
Loan, revolving converted to term loans | 0 |  | 0
Loans | 115,463 |  | 110,881
Loan, prior |  |  | 47,517
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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 0 |  | 0
Loan, prior |  |  | 0
First Mortgage Loans [Member] | One To Four Family Residential [Member] | Substandard [Member] |  |  |
Loan, current | 0 |  | 0
Loan, one year before | 0 |  | 0
Loan, two years before | 0 |  | 0
Loan, three years before | 0 |  |
Loan, prior | 237 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 237 |  | 200
Loan, prior |  |  | 200
First Mortgage Loans [Member] | Multifamily [Member] |  |  |
Loan, current | 0 |  | 0
Loan, one year before | 0 |  | 0
Loan, two years before | 0 |  | 239
Loan, three years before | 236 |  |
Loan, prior | 2,845 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 3,081 |  | 3,111
Current year-to-date gross write-offs, current | 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
Loan, three years before, writeoff | 0 |  |
Loan, prior, write-offs | 0 |  |
Loan, revolving, writeoff | 0 |  | 0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan | 0 |  | 0
Charge-offs | 0 | 0 | 0
Loan, prior |  |  | 2,872
Current year-to-date gross write-offs, prior |  |  | 0
First Mortgage Loans [Member] | Multifamily [Member] | Pass [Member] |  |  |
Loan, current | 0 |  | 0
Loan, one year before | 0 |  | 0
Loan, two years before | 0 |  | 239
Loan, three years before | 236 |  |
Loan, prior | 2,845 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 3,081 |  | 3,111
Loan, prior |  |  | 2,872
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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 0 |  | 0
Loan, prior |  |  | 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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 0 |  | 0
Loan, prior |  |  | 0
First Mortgage Loans [Member] | Commercial Real Estate [Member] |  |  |
Loan, current | 10 |  | 186
Loan, one year before | 184 |  | 0
Loan, two years before | 0 |  | 100
Loan, three years before | 99 |  |
Loan, prior | 3,327 |  |
Loan, revolving | 208 |  | 150
Loan, revolving converted to term loans | 0 |  | 0
Loans | 3,828 |  | 3,835
Current year-to-date gross write-offs, current | 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
Loan, three years before, writeoff | 0 |  |
Loan, prior, write-offs | 0 |  |
Loan, revolving, writeoff | 0 |  | 0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan | 0 |  | 0
Charge-offs | 0 | 0 | 0
Loan, prior |  |  | 3,399
Current year-to-date gross write-offs, prior |  |  | 0
First Mortgage Loans [Member] | Commercial Real Estate [Member] | Pass [Member] |  |  |
Loan, current | 10 |  | 186
Loan, one year before | 184 |  | 0
Loan, two years before | 0 |  | 100
Loan, three years before | 99 |  |
Loan, prior | 3,327 |  |
Loan, revolving | 208 |  | 150
Loan, revolving converted to term loans | 0 |  | 0
Loans | 3,828 |  | 3,835
Loan, prior |  |  | 3,399
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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 0 |  | 0
Loan, prior |  |  | 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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 0 |  | 0
Loan, prior |  |  | 0
First Mortgage Loans [Member] | Construction Loans [Member] |  |  |
Loan, current | 244 |  | 2,508
Loan, one year before | 3,001 |  | 0
Loan, two years before | 0 |  | 0
Loan, three years before | 0 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 3,245 |  | 2,508
Current year-to-date gross write-offs, current | 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
Loan, three years before, writeoff | 0 |  |
Loan, prior, write-offs | 0 |  |
Loan, revolving, writeoff | 0 |  | 0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan | 0 |  | 0
Charge-offs | 0 | 0 | 0
Loan, prior |  |  | 0
Current year-to-date gross write-offs, prior |  |  | 0
First Mortgage Loans [Member] | Construction Loans [Member] | Pass [Member] |  |  |
Loan, current | 244 |  | 2,508
Loan, one year before | 3,001 |  | 0
Loan, two years before | 0 |  | 0
Loan, three years before | 0 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 3,245 |  | 2,508
Loan, prior |  |  | 0
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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 0 |  | 0
Loan, prior |  |  | 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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 0 |  | 0
Loan, prior |  |  | 0
Consumer Portfolio Segment [Member] |  |  |
Loan, current | 11 |  | 122
Loan, one year before | 100 |  | 95
Loan, two years before | 87 |  | 28
Loan, three years before | 25 |  |
Loan, prior | 3 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 226 |  | 248
Charge-offs | 0 | $ 0 |
Loan, prior |  |  | 3
Consumer Portfolio Segment [Member] | Pass [Member] |  |  |
Loan, current | 11 |  | 122
Loan, one year before | 100 |  | 95
Loan, two years before | 87 |  | 28
Loan, three years before | 25 |  |
Loan, prior | 3 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 226 |  | 248
Loan, prior |  |  | 3
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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | 0 |  | 0
Loan, prior |  |  | 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 |  |
Loan, prior | 0 |  |
Loan, revolving | 0 |  | 0
Loan, revolving converted to term loans | 0 |  | 0
Loans | $ 0 |  | 0
Loan, prior |  |  | $ 0

X
- Definition Amortized cost of financing receivable originated more than four years prior to current fiscal year. Excludes net investment in lease. + References No definition available. + Details
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