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Note 4 - Allowance for Credit Losses - Changes in Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Beginning balance | $ 1,201 | $ 1,176
Charge-offs | 0 | 0
Recoveries | 99 | 0
Net recoveries (charge-offs) | 99 | 0
(Release of) Provision for credit losses | (172) | 25
Ending balance | 1,128 | 1,201
First Mortgage Loans [Member] | One To Four Family Residential [Member] |  |
Beginning balance | 1,056 | 1,094
Charge-offs | 0 | 0
Recoveries | 0 | 0
Net recoveries (charge-offs) | 0 | 0
(Release of) Provision for credit losses | (67) | (38)
Ending balance | 989 | 1,056
First Mortgage Loans [Member] | Multifamily [Member] |  |
Beginning balance | 37 | 40
Charge-offs | 0 | 0
Recoveries | 0 | 0
Net recoveries (charge-offs) | 0 | 0
(Release of) Provision for credit losses | 2 | (3)
Ending balance | 39 | 37
First Mortgage Loans [Member] | Commercial Real Estate [Member] |  |
Beginning balance | 41 | 37
Charge-offs | 0 | 0
Recoveries | 0 | 0
Net recoveries (charge-offs) | 0 | 0
(Release of) Provision for credit losses | (4) | 4
Ending balance | 37 | 41
First Mortgage Loans [Member] | Construction Loans [Member] |  |
Beginning balance | 65 | 4
Charge-offs | 0 | 0
Recoveries | 0 | 0
Net recoveries (charge-offs) | 0 | 0
(Release of) Provision for credit losses | (4) | 61
Ending balance | 61 | 65
Consumer Portfolio Segment [Member] |  |
Beginning balance | 2 | 1
Charge-offs | 0 | 0
Recoveries | 99 | 0
Net recoveries (charge-offs) | 99 | 0
(Release of) Provision for credit losses | (99) | 1
Ending balance | $ 2 | $ 2

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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X
- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. 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 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. 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 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
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- Definition Amount, excluding accrued interest, of decrease (increase) in allowance for credit loss on financing receivable from writeoff (recovery). Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. 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 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-22 + Details
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