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Note 4 - Allowance for Credit Losses - Aging of Bank's Loan Portfolio (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Loans | $ 129,464 | $ 130,907
Non-Accrual | 284 | 0
First Mortgage Loans [Member] |  |
Loans | 129,196 | 130,625
First Mortgage Loans [Member] | One To Four Family Residential [Member] |  |
Loans | 118,222 | 119,409
Non-Accrual | 284 | 0
First Mortgage Loans [Member] | Multifamily [Member] |  |
Loans | 3,240 | 3,368
Non-Accrual | 0 | 0
First Mortgage Loans [Member] | Commercial Real Estate [Member] |  |
Loans | 3,813 | 4,197
Non-Accrual | 0 | 0
First Mortgage Loans [Member] | Construction Loans [Member] |  |
Loans | 3,921 | 3,651
Non-Accrual | 0 | 0
Consumer Portfolio Segment [Member] |  |
Loans | 268 | 282
Non-Accrual | 0 | 0
Financial Asset, 31 to 89 Days Past Due [Member] |  |
Loans | 641 | 371
Financial Asset, 31 to 89 Days Past Due [Member] | First Mortgage Loans [Member] | One To Four Family Residential [Member] |  |
Loans | 641 | 371
Financial Asset, 31 to 89 Days Past Due [Member] | First Mortgage Loans [Member] | Multifamily [Member] |  |
Loans | 0 | 0
Financial Asset, 31 to 89 Days Past Due [Member] | First Mortgage Loans [Member] | Commercial Real Estate [Member] |  |
Loans | 0 | 0
Financial Asset, 31 to 89 Days Past Due [Member] | First Mortgage Loans [Member] | Construction Loans [Member] |  |
Loans | 0 | 0
Financial Asset, 31 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member] |  |
Loans | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Loans | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | First Mortgage Loans [Member] | One To Four Family Residential [Member] |  |
Loans | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | First Mortgage Loans [Member] | Multifamily [Member] |  |
Loans | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | First Mortgage Loans [Member] | Commercial Real Estate [Member] |  |
Loans | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | First Mortgage Loans [Member] | Construction Loans [Member] |  |
Loans | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member] |  |
Loans | 0 | 0
Financial Asset, Past Due [Member] |  |
Loans | 925 | 371
Financial Asset, Past Due [Member] | First Mortgage Loans [Member] | One To Four Family Residential [Member] |  |
Loans | 925 | 371
Financial Asset, Past Due [Member] | First Mortgage Loans [Member] | Multifamily [Member] |  |
Loans | 0 | 0
Financial Asset, Past Due [Member] | First Mortgage Loans [Member] | Commercial Real Estate [Member] |  |
Loans | 0 | 0
Financial Asset, Past Due [Member] | First Mortgage Loans [Member] | Construction Loans [Member] |  |
Loans | 0 | 0
Financial Asset, Past Due [Member] | Consumer Portfolio Segment [Member] |  |
Loans | 0 | 0
Financial Asset, Not Past Due [Member] |  |
Loans | 128,539 | 130,536
Financial Asset, Not Past Due [Member] | First Mortgage Loans [Member] | One To Four Family Residential [Member] |  |
Loans | 117,297 | 119,038
Financial Asset, Not Past Due [Member] | First Mortgage Loans [Member] | Multifamily [Member] |  |
Loans | 3,240 | 3,368
Financial Asset, Not Past Due [Member] | First Mortgage Loans [Member] | Commercial Real Estate [Member] |  |
Loans | 3,813 | 4,197
Financial Asset, Not Past Due [Member] | First Mortgage Loans [Member] | Construction Loans [Member] |  |
Loans | 3,921 | 3,651
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member] |  |
Loans | $ 268 | $ 282

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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- Definition Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
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