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Note 8 - Employee Benefit Plans (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 100.00% |
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 392 | $ 402
Age Attained to be Eligible for ESOP (Year) | 21 years |
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP | $ 400 | 360
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares (in shares) | 181,365 |
Age of Employees Required to Diversify Allocated ESOP Shares (Year) | 55 years |
Years of Plan Participation Required to Diversify Allocated ESOP Shares (Year) | 10 years |
Percentage of Allocated ESOP Shares That Can be Diversified | 50.00% |
Accrued Expenses for Salary Continuation Plan | $ 326 | 296
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Due to Demographic Changes | (66) | (764)
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Due to Change in Discount Rate | $ 11,632 | 1,590
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Due to Change in Mortality |  | $ (40)
Equity Securities [Member] |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 65.00% |
Fixed Income Securities [Member] |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 35.00% |
Hedge Funds [Member] |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 0.00% |

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- Definition Liability for agreement to continue an employee's salary after termination of employment including retirement, death, disability, or other event. For example, a company may agree to continue a disabled employee's salary for six months. + References No definition available. + Details
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- Definition Age of an employee to be eligible for the Employee Stock Ownership Plan (ESOP). + References No definition available. + Details
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- Definition Age required to diversify allocated Employee Stock Ownership Plan (ESOP) shares. + References No definition available. + Details
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- Definition Amount of gain (loss) due to change in discount rate from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References No definition available. + Details
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- Definition Amount of gain (loss) due to change in mortality table from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References No definition available. + Details
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- Definition Amount of gain (loss) due to demographic changes from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References No definition available. + Details
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- Definition Percentage of allocated Employee Stock Ownership Plan shares that can diversified. + References No definition available. + Details
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- Definition Years of plan participation required to diversify Employee Stock Ownership Plan (ESOP). + References No definition available. + Details
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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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- Definition This item represents the amount of cash contributions during the period made by the entity to the Employee Stock Ownership Plan (ESOP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Definition The shares or units in an ESOP trust that have been assigned to individual participant accounts based on a known formula. IRS rules require allocations to be nondiscriminatory generally based on compensation, length of service, or a combination of both. For any particular participant such shares or units may be vested, unvested, or partially vested. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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