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Note 4 - Loans Receivable - Loans Individually Evaluated for Impairment By Class (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Loan balance, with no allowance recorded | $ 24,102 |
Recorded investment, with no allowance recorded | 22,049 |
Partial charge-off, with no allowance recorded | 469 | $ 49
Average investment in impaired loans, with no allowance recorded | 16,618 |
Interest income recognized, with no allowance recorded | 39 |
Loan balance, with no allowance recorded |  | 2,831
Recorded investment, with no allowance recorded |  | 2,712
Average investment in impaired loans, with no allowance recorded |  | 2,178
Interest income recognized, with no allowance recorded |  | 103
One-to-Four Family Residential Real Estate [Member] | Real Estate Portfolio [Member] |  |
Loan balance, with no allowance recorded | 66 |
Recorded investment, with no allowance recorded | 67 |
Partial charge-off, with no allowance recorded | 0 | 0
Average investment in impaired loans, with no allowance recorded | 76 |
Interest income recognized, with no allowance recorded | 4 |
Loan balance, with no allowance recorded |  | 752
Recorded investment, with no allowance recorded |  | 752
Average investment in impaired loans, with no allowance recorded |  | 1,143
Interest income recognized, with no allowance recorded |  | 29
Commercial Loans [Member] | Real Estate Portfolio [Member] |  |
Loan balance, with no allowance recorded | 24,036 |
Commercial leases [Member] | Real Estate Portfolio [Member] |  |
Recorded investment, with no allowance recorded | 21,982 |
Partial charge-off, with no allowance recorded | 469 |
Average investment in impaired loans, with no allowance recorded | 16,542 |
Interest income recognized, with no allowance recorded | $ 35 |
Multi-family Mortgage [Member] | Real Estate Portfolio [Member] |  |
Partial charge-off, with no allowance recorded |  | 0
Loan balance, with no allowance recorded |  | 473
Recorded investment, with no allowance recorded |  | 473
Average investment in impaired loans, with no allowance recorded |  | 590
Interest income recognized, with no allowance recorded |  | 27
Commercial Loans and Leases [Member] | Real Estate Portfolio [Member] |  |
Partial charge-off, with no allowance recorded |  | 49
Loan balance, with no allowance recorded |  | 1,606
Recorded investment, with no allowance recorded |  | 1,487
Average investment in impaired loans, with no allowance recorded |  | 445
Interest income recognized, with no allowance recorded |  | $ 47

X
- Definition Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses. + References No definition available. + Details
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- Definition Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as impaired. + References No definition available. + Details
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- Definition Amount of partial charge offs for impaired financing receivables for which there is no related allowance for credit losses + References No definition available. + Details
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- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References No definition available. + Details
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- Definition Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-17 + Details
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