Amount of expense for supplemental employee retirement plan.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Amount of liability, recognized in statement of financial position, for defined benefit pension plan. Excludes other postretirement benefit plan.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

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No definition available.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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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).

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- Definition

Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Note 16 - Employee Benefits (Details Textual) - USD ($)	12 Months Ended
Note 16 - Employee Benefits (Details Textual) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	May 31, 2014
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 829,000	$ 792,000	$ 678,000
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	$ 1,200,000	$ 882,000	816,000
Employee Stock Ownership Plan (ESOP), Shares in ESOP, Total (in shares)	549,330	547,858
Common Stock, Shares Authorized (in shares)	20,000,000	20,000,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 172,000	$ 255,000	9,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value	$ 672,000	$ 396,000	596,000
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in shares)	707	1,500
Share-Based Payment Arrangement, Expense	$ 624,000	$ 646,000	527,000
Share-Based Payment Arrangement, Expense, Tax Benefit	150,000	$ 155,000	$ 127,000
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 1,600,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 10 months 13 days
Share-Based Payment Arrangement, Tranche One [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in shares)			2,763
Share-Based Payment Arrangement, Tranche Two [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in shares)			10,995
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	707	1,500	13,758
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	3 years	3 years
Restricted Stock Units (RSUs) [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			2 years
Restricted Stock Units (RSUs) [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			4 years
The 2014 Long-term Incentive Plan [Member]
Common Stock, Shares Authorized (in shares)				800,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	0		0
The 2014 Long-term Incentive Plan [Member] \| A 7 Year Vesting Stock Appreciation Rights [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		54,947
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)		$ 8.97
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		7 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)		10 years
The 2014 Long-term Incentive Plan [Member] \| A 7 Year Vesting Stock Appreciation Rights [Member] \| Vesting Per Year [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage		14.30%
The 2014 Long-term Incentive Plan [Member] \| A 5 Year Vesting Stock Appreciation Rights [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		122,542
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)		$ 8.40
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		5 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)		10 years
The 2014 Long-term Incentive Plan [Member] \| A 5 Year Vesting Stock Appreciation Rights [Member] \| Vesting Per Year [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage		20.00%
The 2014 Long-term Incentive Plan [Member] \| Restricted Stock Units (RSUs) [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	3 years
The 2014 Long-term Incentive Plan [Member] \| Restricted Stock Units (RSUs) [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	5 years
Supplemental Employee Retirement Plan [Member]
Liability, Defined Benefit Pension Plan	$ 11,300,000	$ 10,300,000
Supplemental Employee Retirement Plan Expense	$ 1,200,000	$ 967,000	$ 787,000