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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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X

- 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

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+ References

No definition available.

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- Definition

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+ References

No definition available.

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- Definition

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+ References

No definition available.

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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

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-15

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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-14A

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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-15

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