Note 4 - Loans (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loans Receivable with Variable Rates of Interest	$ 152,262	$ 104,261
Loans and Leases Receivable, Related Parties, Additions	584
Financing Receivable, Nonaccrual, Interest Income	431	354	$ 281
Minimum Default Loan Limit To Be Considered For Individually Evaluation Of Impaired Financing Receivable	100
Financing Receivable, Excluding Accrued Interest, Modified, Interest Income	124
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount	0
Financing Receivable, Modified, Accumulated	2,224
Financing Receivable, Modified, Unused Commitments	0
Financing Receivable, Modified, Allowance for Credit Loss	142
Financing Receivable, Modified, Commitment to Lend	0
Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months	0
Financing Receivable, Revolving, Converted to Term Loan	0
Director [Member] \| Letter of Credit [Member]
Commitment to Extend Credit, Letter of Credit, Maximum Availability	0	2,275
Loans and Leases Receivable, Related Parties, Additions	0	0
Real Estate Portfolio Segment [Member] \| Family Mortgages 1-4 [Member]
Mortgage Loans in Process of Foreclosure, Amount	$ 0	$ 0
Maximum [Member] \| Commercial Portfolio Segment [Member]
Loan To Value Ratio	80.00%
Maximum [Member] \| Residential Portfolio Segment [Member]
Loan To Value Ratio	80.00%
Minimum [Member] \| Commercial Portfolio Segment [Member]
Loan To Value Ratio	50.00%
Real Estate [Member] \| Maximum [Member]
Loan To Value Ratio	80.00%

Amount of maximum availability for commitment to extend letter of credit.

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- Definition

Amount of interest income on financing receivable modified for debtor experiencing financial difficulty.

+ References

No definition available.

+ Details

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- Definition

Represents allowance for credit loss for financing receivable modified.

+ References

No definition available.

+ Details

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- Definition

Represents unused commitments for financing receivable.

+ References

No definition available.

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- Definition

Represents loan to value ratio.

+ References

No definition available.

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- Definition

Represents minimum default loan limit to be considered for individually evaluation of impaired financing receivable.

+ References

No definition available.

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- Definition

Amortized cost excluding accrued interest, of financing receivable 12 months after modification for debtor experiencing financial difficulty.

+ References

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- Definition

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

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- Definition

Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty.

+ References

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- Definition

Amount of interest income on financing receivable on nonaccrual status.

+ References

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- Definition

Amortized cost of revolving financing receivable converted to term loan.

+ References

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- Definition

Amount of commitment to lend additional funds to debtor experiencing financial difficulty for which creditor has modified terms of financing receivable.

+ References

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Balance Type:	debit
Period Type:	instant

- Definition

Reflects the amount of new advances made to related parties in the form of loan and lease receivables.

+ References

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- Definition

Amount of loan with variable or adjustable rate of interest.

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- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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