Note 4 - Loans and the Allowance for Loan Losses (Details Textual) Pure in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Impaired Financing Receivable, Recorded Investment	$ 1,354,000		$ 1,354,000		$ 4,857,000
Impaired Financing Receivable, Related Allowance	21,000		21,000		28,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	169,000		169,000		273,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,185,000		1,185,000		4,584,000
Impaired Financing Receivable, Average Recorded Investment			1,369,000	$ 2,610,000	3,369,000
Impaired Financing Receivable, Interest Income, Accrual Method	16,000	$ 14,000	46,000	45,000	60,000
Impaired Financing Receivable, Interest Income, Cash Basis Method			0	$ 0
Financing Receivable, Troubled Debt Restructuring	881,000		881,000		897,000
Financing Receivable Modifications Related Allowances	21,000		21,000		28,000
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend	0		$ 0		0
Financing Receivable, Modifications, Number of Contracts			0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts			0	0
Financing Receivable, Nonaccrual	1,485,000		$ 1,485,000		$ 4,863,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	18,000		$ 169,000	$ 325,000
Loans and Leases Receivable, Impaired, Interest Recovery on Nonaccrual Loans	$ 4,000
Number of Loans, 90 Days Past Due and Still Accruing	0		0		0
Deferred Loan Origination Costs	$ 769,000	$ 866,000	$ 2,706,000	$ 2,379,000
Financial Asset Acquired with Credit Deterioration [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	304,000		304,000		$ 496,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	324,000		324,000		517,000
Certain Loans Acquired in Transfer, Nonaccretable Difference	$ 20,000		$ 20,000		$ 21,000

This item represents loan origination costs that have been deferred.

No definition available.

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- Definition

This item represents the related allowance on loans classified as troubled debt restructurings.

+ References

No definition available.

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- Definition

Reflects the amount of additional interest income that have been recorded, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

No definition available.

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- Definition

Represents the number of loans that are 90 days past due and still accruing interest.

+ References

No definition available.

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- Definition

The amount of the loan's contractually required payments receivable in excess of the amount of its cash flows expected to be collected. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

No definition available.

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The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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- Definition

The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

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Amount of financing receivable modified as troubled debt restructuring.

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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- Definition

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of allowance for credit losses related to recorded investment.

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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- Definition

Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

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Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

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